【单选题】

Sometimes you must break long sentences into shorter ones, delete information which is not necessary, or ask an engineer for further explanation.

A、Sometimes you have to change long sentences to shorter ones, remove unnecessary information, or ask an engineer to get further explanation.
B、Some time you have to incorporate long sentences into shorter ones, decrease unnecessary information, or require an engineer for further instruction.
C、Sometime you must illuminate long sentences into shorter ones, ignore information which is not necessary, or order an engineer for further definition.