Select the most appropriate meaning of the given idiom.
Still waters run deep

Correct option is A

The idiom " still waters run deep" metaphorically suggests that a person who appears quiet or placid on the outside often has a deeper, more complex inner life or a profound personality. It underscores the hidden depths of such individuals.
· This phrase is used to describe individuals who are reserved or silent but possess thoughtful, complex, and deep emotional or intellectual qualities. It implies that external calmness can mask significant depth.
· Example: He doesn’t talk much about his life, but still waters run deep; there’s a lot more to him than meets the eye.