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.
The only cure is rest. Antibiotics don't work because these are viruses and cold medicines help with symptoms so you feel a bit better but rest is really the only cure.
Answer:
wym there's nothing there
