In the Situation Where the Null Hypothesis Is True, the Population

In the situation where the null hypothesis is true, the population distribution from which the sample was taken is:

A) the same as the known population's distribution
B) to the right of the original population distribution
C) to the left of the original population distribution
D) either to the right or left of the original distribution, depending on whether the mean of the sample is higher or lower than the mean of the original population