You Are Studying a Group of Closely Related Plant Species

You are studying a group of closely related plant species that are fed upon by numerous herbivores. One of these herbivores is a caterpillar species that has evolved the ability to sequester the alkaloid that is this plant group's principal defense against all herbivores. You then construct a phylogeny of the plant species. You expect to find that the most recently radiated species in the group that co-occur with the caterpillar:

A) are found in resource-rich environments.
B) are found in resource-poor environments.
C) have lost the ability to produce the sequestered alkaloid.
D) produce a novel volatile molecule that attracts predators of the caterpillars.