The answer is b.
Internal fertilization takes more time and energy but it allows for the offspring to revive more devoted care. When an organism spends that much time and energy investing in an offspring it becomes worth the investment to devote more care towards it.
I believe the answer is c. nuts and seeds.
I'd say...lifting weights to tear down the muscle and provide protein with carbs to get back into the muscle to refuel it....tearing down the muscle allows it to rebuild larger
Jana will become unfit, since she is not participating in any activity that gives her exercise. Therefore, she must find something that will give her physical activity.