If you’re trying to rewrite the sentence than B would work best
For one, it's best to remain honest even when no ones looking. Secondly, i'm sure the author of what ever it is would like to receive credit for the work they've done. It's just morally & ethically wrong to accept credit for something that's not original work.
A They keep the same form no matter what tense is used
Answer: Answer is simple: Study but if this has to do with an actual question then show me a picture please.
Explanation: