What number is 15 percent of x? 18 is 6 percent of x. 2/3 of x is
A If statement 1 alone is sufficient to answer the question, but statement 2 alone is not sufficient
B If statement 2 alone is sufficient to answer the question, but statement 1 alone is not sufficient
C If both statements together are needed to answer the question, but neither statement alone is sufficient
D If either statement by itself is sufficient to answer the question