10. Carnivorous mammals can endure what would
otherwise be lethal levels of body heat because they
have a heat-exchange network which kept the brain
from getting too hot.
(A) which kept
(B) that keeps
(C) which has kept
(D) that has been keeping
(E) having kept
Verb form; Rhetorical construction
Th e use of the past tense (kept) is incorrect
because a current situation is discussed; the
present tense (keeps) is consistent with the other
verbs in the sentence. In (A) and (C), which
introduces a restrictive clause. Some writers
follow the convention that which can only be used
for nonrestrictive clauses, but insistence on this
rule is controversial, and both (A) and (C) can be
rejected on other grounds.
Can anyone explain the reasoning behind OG as it states that.
WHICH can only be used for nonrestrictive clauses, this RULE is controversial.
Can anyone give examples on that?
I Assisted You => KUDOS Please