My neighbor’s children love playing hide-and-seek as other children do ，but everybody had imagined that the game they played themselves last week would be reported in the local newspaper. One afternoon, they are playing at the street comer. Paul, only five year old, hid and locked himself in a storage mailbox in accident His sister, Nancy, heard his cries and realized what had happened, so she immediately asked a mailman open the metal door. Paul was free ，but he had such bad a scare that he could not stop cry. The mailman told him that next time he wanted to hide in a mail box, he should remember to put the stamp on himself. When he heard that ，Paul burst into laughing.

四种颜色的光分别通过同一双缝产生的双缝干涉图案如图中各选项所示，用这四种颜色的光分别照射某金属板，只有两种光能产生光电效应，则能产生光电效应的光线中，光子能量较小的光对应的双缝干涉图案是（　　）

A．

B．

C．

D．