1986 AJHSME Problem 25

Which of the following sets of whole numbers has the largest average?

\text{(A)}\ \text{multiples of 2 between 1 and 101} \qquad \text{(B)}\ \text{multiples of 3 between 1 and 101}

\text{(C)}\ \text{multiples of 4 between 1 and 101} \qquad \text{(D)}\ \text{multiples of 5 between 1 and 101}

\text{(E)}\ \text{multiples of 6 between 1 and 101}

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.