Most u. s. high schools emphasize learning based on which is developmentally appropriate.

Most u.s. high schools emphasize learning based on  Deductive thinking, which is developmentally appropriate

In deductive thinking, we draw a conclusion after we eliminate all the impossible possibilities. For example, when we see that plants that watered regularly grow more significantly than the plants that don't, we would deduct that water is the factor that influences the growth.

Ibelieve your answer would be answer choice a