The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

For real numbers a, b, and c, is ab=bc+3 ？（）
(1) ab=3b
(2) b+3=c

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.

人生三阶段是指（）。

A.儿童阶段、青少年阶段、成年阶段

B.儿童阶段、青年阶段、老年阶段

C.人生准备阶段、人生成熟阶段、晚年阶段

D.人生准备阶段、人生保护阶段、晚年生活质量阶段

E.少年阶段、成年阶段、老年阶段