According to Piotrowski, researchers have not yet fully explored how playing video games can affect a person's ability to resolve conflicts (2015).

Which sentence has a correctly formatted in-text citation?

A. The increasing emphasis on job skills in college curricula is adversely affecting the intellectual engagement and critical thinking abilities of many students. (Rockefeller, Jones, 2015)

B. The increasing emphasis on job skills in college curricula is adversely affecting the intellectual engagement and critical thinking abilities of many students. (Rockefeller & Jones, 2015)

C. The increasing emphasis on job skills in college curricula is adversely affecting the intellectual engagement and critical thinking abilities of many students (Rockefeller and Jones, 2015).

D. The increasing emphasis on job skills in college curricula is adversely affecting the intellectual engagement and critical thinking abilities of many students (Rockefeller & Jones, 2015).