AMC 8 1993 Problem 8

To control her blood pressure, Jill's grandmother takes one half of a pill every other day. If one supply of medicine contains $60$ pills, then the supply of medicine would last approximately $\text{(A)}\ 1\text{ month} \text{(B)}\ 4\text{ months} \text{(C)}\ 6\text{ months} \text{(D)}\ 8\text{ months} \text{(E)}\ 1\text{ year}$