Which sentence contains a nonrestrictive clause that is punctuated correctly?

a.My boss—who was recently promoted again is great at motivating her employees.
b.My boss, who was recently promoted again, is great at motivating her employees.
c.My boss who was recently promoted again—is great at motivating her employees.
d.My boss, who was recently promoted again is great at motivating, her employees.

Respuesta :

i am pretty sure the answer is b 

Answer:

b. My boss, who was recently promoted again, is great at motivating her employees.

Explanation:

There are two classifications of the clauses, the restrictive clause, and the nonrestrictive clause. The non-restrictive clause is the clause which does not have any important meaning to provide in the sentence. They can be removed without any disturbance caused to the meaning of the sentence. They provide additional information to the sentence. If removed, the basic meaning of the sentence does not change. The nonrestrictive clause is enclosed by the pair of commas and they usually appear in the middle of the sentence.