The correct answer is b) cleaning because it is describing an ongoing action that is done regularly. The verb "cleaning" is in the present participle form, which indicates that the action is happening now. In this case, it suggests that the kitchen is being cleaned every day as part of a regular routine.
The correct answer is b) cleaning because it is describing an ongoing action that is done regularly. The verb "cleaning" is in the present participle form, which indicates that the action is happening now. In this case, it suggests that the kitchen is being cleaned every day as part of a regular routine.