Since the work of thomas and chess, researchers studying temperament no longer group children into categories such as easy, difficult, or slow to warm up, which reflects what is known as a approach to understanding development. rather, researchers now characterize every child along the same set of dimensions of temperament—a approach to understanding development.

A) Between-person.

B) Within-person.

Explanation:

Now researchers focus on the within person approach, in their minds, their context, personal life, individual aspect of the child to understand a development. Before this began to be developed, they used to label them according what they saw on the outside.

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.

aren't cheetos good enough to be president?