单选题：果实生长发育和成熟受多种激素调节，下列叙述正确的是（　　）。

题目内容：

果实生长发育和成熟受多种激素调节，下列叙述正确的是（　　）。 A．细胞分裂素在果实生长中起促进作用
B．生长素对果实的发育和成熟没有影响
C．乙烯在果实生长和成熟中起抑制作用
D．脱落酸在果实成熟中促进细胞分裂和果实脱落

参考答案：

答案解析：

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