The spines of a cactus are actually modified:

A) branches.
B) stems.
C) leaves.
D) roots.
E) trichomes.

Cactus Spines

Modified leaves or parts of leaves that have evolved into sharp structures to help reduce water loss and deter herbivores.

Modified

Changed or altered from its original form or function, often through natural processes, human intervention, or technological means.

Trichomes

Small hair-like outgrowths from the epidermis of plants, serving various functions such as reducing water loss and providing protection against predators.