Investigators detected a tendency for those who excelled in one of Thurstone's seven primary mental abilities to also demonstrate high levels of competence in other abilities. This provided some evidence of .a. predictive validity.
b. general intelligence.
c. emotional intelligence.
d. neural plasticity.

b. general intelligence.

Explanation:

General intelligence -

It refers to the ability of some people to excel in a particular field and show integrated multiple cognitive abilities , is refers to as the general intelligence .

It shows the person to be very intelligent and smart .

As the person is able to solve any problem , puzzle more efficiently than any other normal human being .

Hence , from the given information of the question ,

The correct answer is b. general intelligence .

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .

which of what? i am confused