Correct Answer: Vigorous

Solution : The correct choice is the first option .

Emphatic means strong and determined in speech or action. It is used to emphasise something forcefully, often to stress a point or idea.

Vigorous is something that is strong and full of energy. Both of these words convey a sense of strength and intensity, making them synonyms.

The meanings of the other options are as follows:

• Restrained is something that is kept under control.
• A hesitant person does not speak or act quickly as he is unsure and nervous.
• Moderate is something that is average.