They made no effort to hide their amusement （） produced a packet

They made no effort to hide their amusement （） produced a packet of sweets from my pocket.
A、whatever
B、wherever
C、whoever
D、whenever
【正确答案】：D
【题目解析】：此题考查 whenever 引导的时间状语从句。句意为“每当我从衣袋里拿出一包糖果的时候，他们毫不掩饰他们觉得好笑”。