The correct answer is D. Formal operational stage.
There are stages which are intellectual development for piaget's. For example, Formal operational, , concrete operational, preoperational and sensorimotor which occurs during birth to the age of twenty four years.
Piaget's theory shows development of intelligence of development and the reorganization of mental which results from maturation of biological and environmental experience.
1. aerobic means "with oxygen" and anaerobic means "without oxygen"
2. aerobic can mean small exercises meaning you aren't using too much of your body's muscles and bones to workout. Anaerobic can mean big exercises meaning weight lifting.
3. With aerobic exercise the oxygen is carried through your breath to the muscles giving them the energy they needed. This is basically an example of a warm-up before an exercise. Anaerobic however makes you out of breath quickly because without doing the warm-up and you just go into the workout you are making yourself weak and not have enough energy.
Hope this helped :)
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A Venous duplex ultrasound of the clients right leg