The answer is A) His current diet increases his risk of heart disease and stroke. (Evidence: Butter can cause both heart disease and stroke because of the grease and oil and too much meat can lead to heart disease which can also lead to stroke) Hope this helped!! :)
I say it's A. But I'm not 100% positive, so sorry if my answer isn't helpful.
All of the above, they can have a negative affect on your body and a positive affect, mainly a negative affect so, A.