单选题（ 0.5 分） The mechanical dif

单选题单选题（ 0.5 分）
The mechanical difference between an MC-C engine and its electronically controlled counter- part, the ME-C engine, constitutes .

A、 a number of mechanical parts made redundant and replaced by hydraulic and mechatronic parts with enhanced functions

B、 number of hydraulic and mechatronic parts and replaced by mechanical parts made redundant with enhanced functions

C、 number of mechanical parts made redundant

D、 a number of mechanical parts made redundant and replaced by a set of computer

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