See what you already know about aerobic exercise. which statement do you think is true?

The answer to this is answer B or the second one if you don't know what B

Here's why: Aerobic exercise involves the movement of large muscle groups and makes your heart work harder. It gets its name from the fact that muscles need extra oxygen to perform this type of activity; the root of aerobic means air.

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