Solution :
The normal body temperature of any human body is considered to be 98.6
. But there is a constant debate about the body temperature of a long held standard to the body temperature.
It is given that :
Null hypothesis and alternate hypothesis :

And 
n is given as = 180
Test statistics = 3.64
Prove = 0.018 < α = 0.05 (let reject null hypothesis for α = 0.05 )
Therefore, their results are statistically significant and the result is unlikely due to chance alone.
Greater because the product of the fraction is greater than 1
I think it would be B but I'm not sure
A is the correct answer, NOT c. You don't list elements of the domain each time they occur, you enter each element of the domain only once