Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: The typical grades awarded for participation in a course are (from highest to lowest) A, B, C, D, and F. Variations on the traditional five-grade system allow for awarding A+, A, A- ; B+, B, & B-; C+, C, & C-; D+, D, & D-; and F. In primary and secondary schools, a D is usually the lowest passing grade, however, there are some schools that consider a C the lowest passing grade, so the general standard is that anything below a 60 or 70 is failing, depending on the grading scale. In college and universities, a D is considered to be an unsatisfactory passing grade. Students will usually still earn credit for the class if they get a D, but sometimes a C or better is required to count some major classes toward a degree, and sometimes a C or better is required to satisfy a prerequisite requirement for a class.
 Question: is a d still passing in middle school Context: Straight Talk offers a variety of prepaid, no contract, phones on their website for use with their plans. Straight Talk also allows customers to bring AT&T, T-Mobile, Sprint, Verizon, or unlocked GSM phones to Straight Talk by buying a SIM card or activation kit and air time from the company. This program does not work with branded Straight Talk, SafeLink, TracFone, Total Wireless, and NET10 phones.
 Question: can i use a tracfone with straight talk service
Yes
Yes
No