SAT Writing Question!

  1. In the wild, pygmy chimpanzees are found only in an inaccessible region south of the Zaire River, (since such is the case, very few are in captivity).

    B. and very few are in captivity as a result.
    E. and so no more than a few are in captivity.

I understood why E was correct but I am still not sure what made choice B wrong. Please help me!

Ok! I got it. Thank you!
Next time I will look for conciseness too.