Bill Is Standing on the Ledge of a Tall Building

Multiple Choice

Bill is standing on the ledge of a tall building.He yells out to the gathering crowd, "I have nothing left to live for!" Research suggests that people are particularly likely to chant, "Jump! Jump! Jump!"

A) after 6:00 p.m.(as opposed to earlier in the day) .
B) when the temperature exceeds 90 degrees Fahrenheit.
C) when the crowd exceeds 300 people.
D) Both a and c are correct.