Which sentence does not contain any punctuation errors?


A.Following an introduction, Ms. Graves, the chair of the foundation, spoke, she received a standing ovation.


B.Following an introduction, Ms. Graves, the chair of the foundation, spoke; and she received a standing ovation.


C.Following an introduction, Ms. Graves, the chair of the foundation, spoke, and she received a standing ovation.


D.Following an introduction, Ms. Graves, the chair of the foundation, spoke, and received a standing ovation.