Question

Which sentence uses punctuation correctly?








A.
The discovery which was the first of its kind, in several years, caused an international stir.







B.
The discovery which was the first of its kind in several years, caused an international stir.







C.
The discovery, which was the first of its kind in several years, caused an international stir.







D.
The discovery, which was the first of its kind in several years caused an international stir.

Answer 1

b

Answer 2

Actually this one is A.

Answer 3

Your answer is C.
The discovery is your noun and "which was the first of its kind in several years" Tells you more about this noun which puts it between two commas right after your noun.