One way in determining your fitness level is trying to do a Full Sprint Run and holding your breath for as long as you can. That way you can determine your cardiovascular capacity and lung capacity. On improving your fitness levels you should do swimming, jogging and of course a balanced diet.
It’s A
Explanation- I’ve played basketball my entire life, and see it happen thousands of time.
Answer:
Simple. Person A adopted person B as his son...soon to realize he adopted his grandson. How could this happen? Person A's daughter died in a car crash, leaving person B an orphan. Person A was never told that Person B's mother had a son. About 5 years later, Person A decides he wants to adopt a boy. He goes to the local orphanage were all the wild children laid. There, he found Person B, not knowing who he was and what he had been through. Person A adopted Person B as his son and ta da! The mystery's of life.
(This is so informal, but I believe it's enough to answer your question)
"Hoped this helped" :)
Oh and, this triggers a new plot for a new story, thank you!
Get a new one or motivate yourself to do better