All of These but One Are Practical Reasons to Be

Multiple Choice

All of these but one are practical reasons to be concerned with preserving plant diversity. Which is the exception?

A) Over 100 prescription drugs are made from substances derived from plants.
B) Humans depend on plants for lumber and jobs.
C) Loss of plant biodiversity, in turn, negatively affects animal biodiversity.
D) Local knowledge of rainforest plant communities has no impact on the production of new medicines.