Which clause in this sentence is restrictive? "because," mr. dodson replied, "it's a movie, made by some of the greatest animators in the business, that involves the scientific process of how our brains comprehend three-dimensional imagery."

The answer is "that involves the scientific process of how our brains comprehend three-dimensional imagery".

Explanation:

A restrictive clause is a relative clause that provides essential information about a noun or noun phrase, limiting it. It can also be called defining relative clause. A restrictive clause is not set off by commas.

In the structure  "Because," Mr. Dodson replied, "it's a movie, made by some of the greatest animators in the business, that involves the scientific process of how our brains comprehend three-dimensional imagery" we can easily find the restrictive clause. We have two sentences modifying the noun "movies", offering information about it. However, the clause "made by some of the greatest animator in the business" is set off by commas, so it cannot be the restrictive clause we are looking for.

On the other hand, "that involves the scientific process of how our brains comprehend three-dimensional imagery" modifies the noun "movies" by limiting it - it is not any movie, it's a specific one -, and is not set off by commas. Therefore, it is the restrictive clause we are looking for.

to convince americans of the importance of others.

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.