Answer:
I think it's A... at least for teenagers
Explanation:
The correct answer is the number of friends they have
One of the best ways to avoid injury while biking is to make sure that the positions of the bike seat and handles are appropriate for your height.By adjusting that we can avoid falling off from the bike and hitting any objects.Apart from that each rider wants to obey the traffic rules so that accident won't occur.
The answer is b. er packages proteins and delivers them to other parts of the cell.