3) How is the Oxford University study different from past studies on the effects of video games?

A) It included measurements of game playing time as well as gamers' experiences.
B) It used different mental health and mood metrics than previous studies.
C) It included device data provided by game companies.
D) It used popular video games rather than those built for the study

I read someone say it’s c and some say it’s not c so i need the actual answer please it was from Newsela “Study suggests video games can help mental health”