Which of the following sentences uses the active voice? The Panasonic home theater system is not covered by this warranty. The call was placed by our sales representative. The CEO did not inform the employees of the merger.

Identify the sentence in which the underlined word or words are punctuated incorrectly. a) pam was (well prepared) for the debate. b) she had (read three quarters) of the material more than once. c) she has always been (self assured). d) the winner needs a (two-thirds) majority of the votes.