C) and grew to its mature form as a result of cell division.
A tumor is an abnormal mass of tissue, which doesn't necessarily mean that you have cancer. Tumors can be benign, not cancerous, or they can be malignant, pre-cancerous. Another name for a tumor is a neoplasm.
The answer to what you're asking for would be C.
Parent use. If they aren't taught to use seat belts, then they won't wear seatbelts
The least reliable source of safety information is celebrity athelte