Sentence Correction

The increased popularity and availability of televisions has led to the decline of regional dialects, language variations which originate from diverse ethnic and cultural heritages and perpetuated by geographic isolation.
(A) which originate from diverse ethnic and cultural heritages and perpetuated
(B) that originated from diverse ethnic and cultural heritages and perpetuated
(C) originated from diverse ethnic and cultural heritages and perpetuated
(D) originating from diverse ethnic and cultural heritages and perpetuated
(E) originating from diverse ethnic and cultural heritages and perpetuating

C or D, and I choose C my friend.

What's wrong with B.
OA is D

Language variations still occur due to diverse ethnic and cultural heritage.

Option B makes this a thing of the past or at least suggests that language variations don't happen that way anymore. Hence is incorrect.