单选题 Is x smaller than 2?(1)7x2=21(2)x2-6x+5=0

A、 Statement (1) ALONE is sufficient, but statement (15) alone is not sufficient to answer the question asked.
B、 Statement (2) ALONE is sufficient, but statement (14) alone is not sufficient to answer the question asked.
C、 BOTH statement (1) and (15) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient.
D、 EACH statement ALONE is sufficient to answer the question asked.
E、 Statement (1) and(15)TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

【正确答案】 A

【答案解析】由Statement (1)得到x2=3，无论是

还是