Question

Which sentences contain a restrictive or nonrestrictive relative clause? Check all that apply. -- comment what letters apply

Answer 1

Answer:

The answer to your question would be that A, B and D contain relative clauses.

Explanation:

Relative clauses can either be restrictive or nonrestrictive depending on the information they provide. B and D contain restrictive relative clauses because the information provided by these modifiers is necessary to identify the noun they refer to. If the clauses were removed, the meaning of the sentence would be altered (see 1 and 2). On the contrary, A contains a nonrestrictive relative clause because the information the clause provides is not relevant to the meaning of the sentence; in fact, it could be dropped without changing the meaning of the sentence (see 3).

1. # The bicycle is still in great shape (not the same as the original sentence)

2. #Sierra met the boy (not the same as the original one)

3. The car is parked in the garage

Answer 2

The sentences, which contain restrictive relative clause are options A, B AND D.
Restrictive relative clause refers to those clauses which start with relative pronouns, such as who, that, which, when, where, etc. A restrictive relative clause gives information about the noun which it refers to while a non restrictive relative clause will not give information about the nouns it refers to. 
The restrictive relative clause in option A is 'Which took Miah months of saving money to buy'.
The restrictive clause in option B is 'That Kameron has had since he was ten years old'.
The restrictive relative clause in option D is 'whose parents recently opened the restaurant across the street'.
These relative restrictive clauses give more information about the nouns they are referring to.