Direction : Read the sentence and find out the action word.
Tia climbs the tree.

The correct answer is: Climbs

Tia climbs the tree.

Action word is the word that describes what the subject is doing. Reading the sentence, it can be understood that the work Tia is doing is, she is climbs the tree. Now, ask yourself the question, what is the word that shows that Tia is doing something. So, the answer would be 'climbs'. The rest of the options are the subject and the object of the sentence, whereas, 'climbs' is the action word.