Before being shut down, a diesel engine should idle a few minutes in order to ＿.A.prevent

Before being shut down, a diesel engine should idle a few minutes in order to ＿.

A.prevent governor surging at shutdown

B.make sure the fuel nozzles are flushed clean

C.prevent pressure buildup in the fuel lines

D.prevent damage from localized overheating

请帮忙给出正确答案和分析，谢谢！

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