DREADFUL856IN DREADFUL856IN English Answered Which sentence uses the proper APA web source citation to avoid plagiarism? Select one: a. According to Joseph Campbell (1991), Robert Frost was "the most popular poet of his time." b. According to Joseph Campbell (Campbell, 1991), Robert Frost was "the most popular poet of his time." c. According to Joseph Campbell (1991, pg 12), Robert Frost was "the most popular poet of his time." d. According to Joseph Campbell (Campbell, pg 12), Robert Frost was "the most popular poet of his time."