Of the Following,the Best Way to Cite a Source in a Speech

Multiple Choice

Of the following,the best way to cite a source in a speech would be _______.

A) "According to a magazine I read last week ..."
B) "According to Arthur Jones in Harper's magazine,August 7,1989,in an article entitled "New Sources of Energy," on page 17 ..."
C) "According to Arthur Jones in an article in last August's issue of Harper's magazine ..."
D) "According to "New Sources of Energy" ..."