Aperson can run 5 miles in one stretch and wants to run a 26-mile marathon next year.

what is an appropriate long-term goal for this person?

to run 10 miles in one stretch by the end of the first week

to run 15 miles in one stretch by the end of 6 months

to run 20 miles in one stretch by the end of the first month

to run 26 miles in one stretch by the end of the first month

2 months the brain usually gets used to something after 2 months so dose muscles AKA (muscle memory)

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.

That's  a project for you to do. btw your teacher probably uses a plagiarism detector and if you do copy anything on this site she/ he will find out and instead of getting a good  or bad grade you'll  get a 0 no exceptions, and they'll  probably call ur parents. so do some research ask friends and fam to you.