What is the question here bud
These structures are called taste buds and they sense salty, sweet. sour, bitter tastes in the food.
The answer is b, it can guide treatment of cardiac disease
Carl is facing a challenge where he either has to chose whether he wants to set and complete his own goals of playing football or whether he wants to set and complete the goals of his father who wants him to play soccer. In the end it will be up to Carl to decide which goal will he want to set and complete.