Detailed Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.
See one example below:
Problem: For four years we have waited expectantly for the pitter patter of tiny paws. Soon, that wait could finally be over. Tian Tian, the UK's only female giant panda, has conceived and could give birth to a cub as early as August. However Edinburgh Zoo, where the pandas live, have warned people 'not to get too excited' as the process is 'extremely complex'. Moreover, on the two previous occasions keepers inseminated Tian Tian - whose name means 'Sweetie' - she has failed to produce a panda cub. She was artificially inseminated again in March this year, but keepers at the zoo say implantation - when a fertilised egg attaches to the uterus - has not yet occurred.Tian Tian has conceived and could give birth to a cub as early as AugustShe has been inseminated twice before but so far failed to produce a cubTian Tian and Yang Guang arrived in 2011 from China to great fanfareOn loan at £600k a year, became first giant pandas to live in UK for 17 years 
 Questions:Under the terms of the agreement any cubs will return to _ at the age of two, the age at which they would normally leave their mother in the wild. (A) Tian Tian (B) UK (C) Edinburgh Zoo (D) Sweetie (E) Yang Guang (F) China
Solution: (F)
Explanation: This is a good example. Based on the passage, any cubs will return to China at the age of two

Problem: You’ll soon be able to track how active your sex life is using your iPhone thanks to a forthcoming update. Apple's iOS 9 will let people track when, and how often they have sex, as well as letting women log their menstrual cycle. The company has previously come under fire for ignoring the importance of female customers and this will be redressed when the revamped HealthKit rolls out in autumn. The update was announced by Apple’s Vice President of Software Engineering, Craig Federighi at the company's Worldwide Developers Conference (WWDC) conference yesterday. He said users will be able to track how much water they drink, UV exposure and how long they sit still for, as well as their reproductive health -  but didn’t provide any further details.HealthKit update unveiled at Apple's Worldwide Developers ConferenceScreenshots suggest feature will let users monitor sex and menstruationCompany has previously come under fire for ignoring female customersFeatures will roll out with the iOS 9 update coming in autumn 
 Questions:_ was originally launched as a comprehensive health monitoring system a year ago. (A) Apple (B) HealthKit (C) Apple’s (D) Software Engineering (E) Craig Federighi (F) Worldwide Developers Conference (G) WWDC (H) UV
Solution:
(B)