Find out the correct use of action words based on the picture.

The correct answer is: The boy is writing.

Let's look at the usage of action words in the options. 'The boy is writing' tells us that the boy is writing something like it is shown in the picture. 'The boy is reading' tells us that the boy is reading something, but clearly, that is not what is shown in the picture. Therefore, the answer is 'THE BOY IS WRITING'.