Taste buds are onion-shaped structures with
between 50 and 100 taste cells, each of them has fingerlike
projections poking through the opening located at the top of the taste bud
called the taste pore.

A.
them has fingerlike projections poking through the opening located at the top
of the taste bud called the taste pore

B.
them that have fingerlike projections that poke through an opening located at
the top of the taste bud, which they call the taste pore

C.
which has fingerlike projections poking through the opening, called the taste
pore, located at the top of taste bud

D.
which having fingerlike projections that poke through an opening, which is
called the taste pore, located at the top of the taste bud

E.
which have fingerlike projections that are poking through an opening located at
the top of the taste bud called the taste pore

OA:
C

Eliminated
B,D and E for “have” or “having”.

But
stuck between A and C: “each of them” v/s “each of which”.

Please
help me to understand why C is correct.

Thanks.

IMO this is a scenario where you can eliminate one of the 2 options on basis of pronoun ambiguity.

Saikat ,

Each of them has — independent clause .

Each of which  has — dependent clause .

note : “which ” — clause marker .but , ” them ” — is not .

option A : wonr because , it connects two independent clause by a comma only .

Good going Deepak 🙂