You will be given a definition of a task first, then some input of the task.
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.

London (CNN) -- Significant progress was reportedly made last weekend in Geneva toward a landmark nuclear agreement with Iran. And, as talks concluded on November 10, U.S. Secretary of John Kerry announced that negotiations will start again on November 20. Despite the concerns of regional U.S. allies like Israel and Saudi Arabia, and also a significant number of legislators in the U.S. Congress, it is clear that the Obama administration is pushing strongly for deal as part of its wider Middle Eastern strategy. Indeed, Kerry has now spent more time negotiating with counterpart Iranian officials than any other U.S. high-level engagement for perhaps three decades.Obama administration seeking Iran deal as part of wider Mideast strategy, says Andrew HammonDeal would reportedly see Iran's nuclear capacity capped for six months, opened up to inspectionSince re-election, Obama has achieved little policy success amid political gridlock - HammondForeign policy allows Obama potential for long-term success, he adds 
 Questions:As well as legacy-building, the likelihood of _ concentrating more on foreign policy also reflects domestic U.S. politics. (A) London (B) CNN (C) Geneva (D) Iran (E) U.S. (F) John Kerry (G) Israel (H) Saudi Arabia (I) U.S. Congress (J) Obama (K) Middle Eastern (L) Kerry (M) Iranian (N) Mideast (O) Andrew Hammon
Output:
(J)