Answer:
It depends on the person your getting it from. For example, Brainly is kinda like a social media because people post stuff for others to respond. Depending on the characteristic of the person, the answer will be right... or wrong. I say this because goofy people give goofy answers such as 1+1= 4.
People thats mature will anwer responsibly, like I'm doing.
Explanation:
DOT GET FOOLED.. im prolly the goofiest person on this site xD
Given the attitude of the grandfather portrayed in the problem, the most likely answer is
B) Go to the doctor regularly because he can monitor his health before problems get severe.
This would be because you are reminded, "prevention is the best medicine", and the answer B provides the precaution that is recommended.
Sign language. It uses only signs made with your hands. You do not have to hear to understand it.