Choose the statement that must be true according to the given information.

The Pacific yew is an evergreen tree that grows in the Pacific Northwest. The Pacific yew has a fleshy, poisonous fruit. Recently, taxol, a substance found in the bark of the Pacific yew, was discovered to be a promising anticancer drug.

A) Taxol is poisonous when taken by healthy people.
B) Taxol has cured people from various diseases.
C) People should not eat the fruit of the Pacific yew.
D) The Pacific yew was considered worthless until taxol was discovered.