If competitors get together to raise or lower prices,this act is

If competitors get together to raise or lower prices,this act is ____.
A、price discrimination
B、deceptive pricing
C、resale price maintenance
D、price fixing
【正确答案】：D
【题目解析】：price fixing 限价，价格管制；价格垄断；如果竞争对手聚在一起提高或降低价格，这种行为就是定价。