7.5XY9

What digit does X represent if each of X and Y are single digits in the above decimal?

If the decimal is rounded to the nearest hundredth, the result is 7.55
If the decimal is rounded to the nearest tenth, the result is 7.5
(A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
(B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
(C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
(D) EACH statement ALONE is sufficient.
(E) Statements (1) and (2) TOGETHER are NOT sufficient.

OA is C