Read the following paragraph from the section "Play Time Had A Small But Real Effect." "The fact that it's the electronic data collected from the device is very good, it's very objective," said Paul Croarkin, a psychiatrist at the Mayo Clinic in Minnesota. A psychiatrist is a doctor who studies illnesses of the mind. Croarkin has studied video gaming and children. He said he had "lingering questions" about the study and said the self-reporting nature of the survey was a weakness, but added that the researchers presented their findings in a balanced way.

Which selection from the article BEST supports the idea that electronic data is more reliable than survey data?

Group of answer choices

A The research results are based on survey responses from people who are 18 and older.

B Their responses were then matched up to the amount of time spent playing the games, which was provided by the game companies.

C Still, experts who weren't involved in the research said it showed some strengths, such as accurately measuring game playing time.

D We cannot say for sure that increased wellness was caused by playing the two video games.