Although Casey scores only about average on standardized intelligence tests, she is street-smart and has excellent social skills and good common sense. Given a problem, Casey will try her best to arrive at a solution. Most of her friends and family appreciate this about her as she seems to be able to find ways to get things done on her own. In the context of Sternberg's theories, she has intelligence.

Practical Intelligence

Explanation:

According to Sternberg's triarchic theories of intelligence, there are three aspects to intelligence and they are: analytical, creative, and practical, ”

Practical Intelligence is the ability to apply, use, and implement what you know. It is the ability that individuals use to find the best fit between themselves and the demands of the environment.

Practical intelligence involves the ability to deal with daily tasks in the real world. it can be called being “street smart"

Practical intelligence as defined by him as something that gives an individual the power to suit his solutions according to the requirements of the society he finds himself in.

Casey exhibited practical intelligence from the actions she displayed according to the question.

the answer would be a)henry grady because he came up with the term "new south"