The correct answer is A. is.
The sentence is in the present continuous tense, which is used to describe actions that are happening right now. The verb “to be” is conjugated in the third person singular, which is “is”.
The other options are incorrect because they do not agree with the tense of the sentence. Option B, “are”, is the plural form of the verb “to be”. Option C, “does”, is the third person singular form of the verb “to do”. Option D, “has”, is the third person singular form of the verb “to have”.
Here are some examples of how the present continuous tense can be used:
- I am watching a movie.
- You are eating a sandwich.
- He is playing basketball.
- She is reading a book.
- We are going to the store.
- You are talking to your friend.
- They are playing video games.