Respuesta :
option B is correct. However, the sentence is still correct but if necessary, it can be divided with a conjunction.
The revision that describes how to correct this comma splice is: B)Add the conjunction and after the comma.
What is a Conjunction?
Conjunction is a word that is used to connect two independent sentences. In the sentence there is an error about the use of conjunctions.
After the comma, a conjunction like, "so" should have been used. So, we can revise this sentence this way: Nina promised to clean out her closet today, so she is stuck inside until she is done.
Learn more about conjunctions here:
https://brainly.com/question/708183