Topic: Gerunds & Participles,

Best Answer Explained in Below-:

The phrase "A rolling stone gathers no moss" is a well-known proverb that emphasizes the idea of constant movement and change as a way to avoid stagnation. In this context, the correct word to fill in the blank is "Rolling."

The use of "rolling" serves as a present participle, which describes an ongoing action. It conveys the imagery of a stone that is continuously in motion, thereby preventing the accumulation of moss. This aligns perfectly with the proverb's underlying message: individuals who are always active, pursuing new experiences, and adapting to changes are less likely to become stagnant in their lives.

On the other hand, the options "rolled" and "roll" do not fit the grammatical structure or the intended meaning. "Rolled" suggests a completed action, implying that the stone has already stopped, while "roll" is an infinitive form that lacks the necessary context.

The phrase is understood as a timeless truth, reflecting a philosophy of life where remaining dynamic and engaged leads to personal growth, thus making "Rolling" the most appropriate choice.