Which of the following people could tell the difference between a cultured pearl and an organic pearl

A．Scuba diver.

B．Fisherman.

C．Jeweler.

D．Clerk.

改进候选人提名制度和选举方式，采取（）相结合的办法产生基层党组织领导班子成员候选人，探索候选人与选举人见面、公开竞职承诺等做法，逐步扩大差额选举比例。

A、组织推荐

B、党员推荐

C、群众推荐

D、个人推荐