The Following Sentences Form a Paragraph

Multiple Choice

The following sentences form a paragraph. Select the letter in each pair that is correct and does not contain run-on sentences or comma splices.  ​

A) When beer companies and other marketers began promoting the holiday it grew as  a celebration of Mexican culture, not a historical remembrance.
B) Beer companies and other marketers began promoting the holiday it grew as a  celebration of Mexican culture, not a historical remembrance.