Which resource is properly matched with its source?

Question

Quizplus · Accepted Answer

Pharmaceuticals are usually sourced from angiosperms, which are flowering plants that are commonly used in medicine production. Wood and lumber come from trees, which are usually sourced from gymnosperms, not bryophytes. Gymnosperms are also known for producing seeds that are often used as a source of food. Pteridophytes, on the other hand, are ferns and fern allies that are rarely used as a source of pharmaceuticals.

Which Resource Is Properly Matched with Its Source