<span>A heart attack happens when one or more of your coronary arteries become blocked.</span>
Guidance can be considered as a multitude of behaviors that parents exhibit towards their children. Parents often guide their children in different aspects of life which enables the children to grow up more successfully into healthy and responsible adults.
An example is when the child needs guidance on deciding which school he should chose and his parents tell him what school he should chose in the end.
It is possible to get some STIs through a blood transfusion, most commonly aids, however if you are getting the blood transfusion from a hospital or the red cross your chances of getting an STI are next to none because they test all the blood and stuff.<span />
I believe the answer is d