请教各位，这个题是什么意思？答案是B，为什么是B呢。。。

In the decimal representation of x, where 0 < x < 1, is the tenths digit if x nonzero?
(1)          16x is an integer.
(2)          8x is an integer.
       
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.

"is the tenths digit if x nonzero?", are you  sure this sentence is complete and correct?