Amedical study was investigating if getting a flu shot actually reduced the risk of developing the flu. from a group of adult volunteers, researchers randomly assigned half to receive an injection that contained the drug believed to reduce the risk of getting the flu and the other half to receive an injection containing no active ingredient (i. e. sugar water). what type of study is being performed?

i-i-i-i-i-i don't k-k-k-k-know.

answer; (d) braking faster then cars;

just be there for her.

explanation:

not necessarily literally but figuratively. also don't say things like "i understand how you feel", because even though you are trying to , you clearly don't understand how she feels (i'm gonna go out on a limb here and assume you've never had a heart attack). also just let her rest. that is one of the best things for you to do.