Given below are sentences with an idiom given in bold. Replace the idiom from the four options provided to make the sentence contextually meaningful and grammatically correct. If no such replacement is required mark (e)
i.e., “No replacement required” as your answer choice. We must carefully plan our moves in business rather than pulling out all the stops without thinking ahead.

The idiom "pulling out all the stops" means to make every possible effort, often without considering the consequences. However, the sentence suggests the importance of careful planning, so "jumping the gun" (acting too soon without preparation) fits better here. Meanings of other idioms: Playing our cards right – Making smart or careful decisions to achieve success. Hitting the jackpot – Achieving great success, especially unexpectedly. Throwing in the towel – Giving up, quitting. Since the sentence emphasizes the need for planning and avoiding premature action, option (a) is the correct replacement.