The enlargement of an organ or tissue from the increase in size of its cell.
Hmmm...
A and D are wrong.
Both B and C are technically correct, but in the case of athletes...since exercise is proven to strengthen the heart and in turn decrease the heart rate...
B is the best answer.
Have a nice day!
Answer:
If one inherits a gene for a specific disease, and the gene is recessive, the disease is not always present.
Explanation: