text: Billy often eat hamburgers, but he did not always have then with cheese.  Billy are cheeseburgers more often than some people, but less often than others.  You could say that it was something he did only when? </s> A: occasionally </s> B: seldom </s> C: hardly ever </s> D: infrequently </s> E: never </s> There is only one correct answer. Pick the best answer.