Overharvesting of Species We Consume Is the Single Biggest Cause

Overharvesting of species we consume is the single biggest cause of species becoming endangered. True or false?

A) True. As human population grows we need more and more to eat, so this is generally the reason species become endangered.
B) True. Food species are increasingly going extinct these days.
C) It's not at all clear what causes most species to become endangered because there are so many factors.
D) False. We don't really overharvest most economically important resources.
E) False. This does happen, but we're learning how to harvest sustainably and conservation programs have been successful bring exploited species back from the brink.