Question

the root of the word valiant gives a clue that this word means
\holding tightly to something.\
\acting with strength and bravery.\
\feeling pleasure or happiness.\
\behaving in a self - serving manner.\

Explanation:

The root of the word "valiant" is "val-", which is related to "value" and "worth", and also has the connotation of "strength" and "courage".

Answer:

"acting with strength and bravery."