Choose the sentence that uses parallel structure. A. She laughed at his joke, slaps him on the back, and walked on to class.
B. She laughs at his joke, slapped him on the back, and walks on to class.
OC. She laughed at his joke and slapped him on the back, and walked on to class.
D. She laughed at his joke, slapped him on the back, and walked on to class.