n is a two-digit number, 30≤n≤80, is the single digit of n equal to 2?
(1). Both single and tens digits are prime numbers
(2). The sum of N's tens digit and units digit is a prime number
-
AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
-
BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
-
CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
-
DEACH statement ALONE is sufficient.
-
EStatements (1) and (2) TOGETHER are NOT sufficient.
显示答案
正确答案: C