What is the value of the positive, two-digit number x?( The sum of ... ...

What is the value of the positive, two-digit number x?

(1) The sum of its digits is 4.

(2) The difference of its digits is 4.


(A) if statement (1) ALONE is sufficient to answer the question but statement (2) alone is not sufficient;
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set A - Intro to Data Sufficiency