Answer:
D.
Explanation:
heart problems have to do with obesity and it is a common fact that obesity is the number one health problem today.
There are a lot of homeless people in the state I live in and the occasional gun control too XD
But, my top 3 list would be
1) Health care
2) Pollution / global warming
3) Immigration
According to scientific research. I think it's option C -lower the temperature of an oli
I believe the answer is C.