Why is it necessary to frequently update a workout program? A. A workout program must be updated every 4-6 weeks in order to
address different muscle groups.
B. Maintaining the same workout program will cause boredom,
making the possibility of quitting much higher.
C. A workout program must gradually be made more challenging, so
the body can continue to improve as it adjusts.
D. A workout program must be updated every 4-6 weeks in order to
address different fitness components, such as flexibility, cardio
endurance, and resistance training.

C. A workout program must gradually be made more challenging, so

the body can continue to improve as it adjusts.

Explanation:

brainliest plz :)

for me i have felt invisible when i was clearly struggling,or,i made a great achievement ,and,nobody took to notice me either because they just didn't see it,or,people just turned their back on me.i can see a person being invisible by choice,or,without choice like i did.the people who are invisible by choice don't try to talk to people,don't try to make friends,and,keep to themselves.i haven't been one of those people so i couldn't give you a reason.

hope this and can i get bainliest my dude : d