It Is Appropriate to Use the Independent-Samples T-Test When

It is appropriate to use the independent-samples t-Test when:

A) We want to compare the means of pairs of individuals who have been matched because they are similar to each other.
B) We want to compare the means of two independent groups.
C) We want to compare a sample statistic to a population statistic.
D) We want to compare the means of more than two groups.