C). "On the basis of the results, the researchers recommended that people laugh for at least fifteen minutes each day" (Wiseman)
Explanation:
<u>As per MLA(Modern Language Association), a web source is cited in the format beginning with the content inside the quotation marks followed by the author's name in the parenthesis</u>. The third option correctly follows this pattern("On the basis...each day"(Wiseman)). The first option is incorrect as it wrongly employs the quotation marks after the text while the second option is inapt due to the incorrect placement of the author's name within the period. Thus, <u>option C</u> is the correct answer.
