Which sentence is grammatically correct? A He don't want to attend class regularly. B He doesn't want to attend class regular. C He don't want to attend class resular He doesn't want to attend class sularly.

The correct answer is D. "He doesn't want to attend class regularly."<br /><br />Explanation:<br />- Option A is incorrect because "don't" is used with plural subjects, while "he" is a singular subject.<br />- Option B is incorrect because "regular" should be "regularly" to correctly modify the verb "attend."<br />- Option C is incorrect because "don't" is used with plural subjects, while "he" is a singular subject.<br />- Option D is correct because "doesn't" is used with singular subjects, and "regularly" correctly modifies the verb "attend."