A student is not able to succeed in a mainstream classroom without additional formal help. What is used to define the additional formal help the student will receive and how they will receive it

Hidden curriculum.

Explanation:

A hidden curriculum is an structure that is not officially recognized by teachers, administrators and students, but that has a significant impact; it is generally determined by appropriate values, attitudes, and behaviors. What it costs a student the most to adapt to a school is not to catch up on knowledge, but to know what is allowed, what is expected of him, how he can relate to his peers. A hidden curriculum reflects the additional knowledge that is being learned and that are not in the curriculum, it is a provider of covert, latent, not explicit teachings, which the institution has the ability to provide to the extent that the teaching community has a clear notion and, above all, a common ideology in this matter since it tries to train students in correspondence with what is intended to be achieved.

answer would be b, a tariffs main purpose is to protect domestic production and jobs.

well 1 they have there leader that controls them