The bolded words are noun clause.
<span>A </span>noun clause<span> is
a dependent </span>clause<span> that
acts as a </span>noun. Noun clauses<span> begin
with words such as how, that, what, whatever, when, where, whether, which,
whichever, who, whoever, whom, whomever, and why. </span>Noun clauses<span> can act as subjects, direct objects,
indirect objects, predicate nominatives, or objects of a preposition.</span>
The correct answer between all
the choices given is the third choice or letter C. I am hoping that this answer
has satisfied your query and it will be able to help you in your endeavor, and
if you would like, feel free to ask another question.
