It's said that within five years cars will be a lot ____in our country.

A．cheaper

B．cheapest

C．cheap

D．more cheap

保险事故发生后，被保险人为防止或者减少保险标的的损失所支付的必要的、合理的费用，由保险人承担；同保险标的损失赔偿金额一并计算。