To tell you the truth, I think it is you______ Mr. Black______.

A．less than, which are to be blamed

B．rather than, that are to blame

C．other than, that is to blame

D．more than, who is to blame

现有四个实验装置，若要验证绿色开花植物产生O²需要光和验证O²是否由绿色植物释放，则应选用的实验组合分别是（）。

A.①②和①③

B.②③和①②

C.②④和①③

D.②③和③④