Identify the subordinate clause in the following sentence.

Forty years ago, there were 4,000 South China tigers living in the wild, while today fewer than 30 remain.

A.

today fewer than 30 remain

B.

while today fewer than 30 remain

C.

while today

D.

Forty years ago, there were 4,000 South China tigers living in the wild

A subordinate clause is a dependent clause that is connected to the main sentence using subordinating conjunctions such as: because, although, if, once, after, before, and etc. This clause serves as an additional information to the main sentence. In the given sentence, the subordinate clause is, option B. while today fewer than 30 remain. The word "while" is an example of a subordinating conjunction.

The answer is B. while today fewer than 30 remain