As check up would have become an important part of your daily routine if you grew in a family that gets regular check ups, this means that will be less likely to forget a regular check up as your daily routine would have been set to get a check up. Also, the people who get a regular check up are less likely to get sick. Memory will be generated in the brain of the person to get a regular check up and the brain will remind for the check up.
The answer is C because transportation regulation is going to prevent overcrowding and therefore help with good hygiene. this prevents the spread of germs.
