Gutta percha is primarily made from which of the following substances?

Gutta percha is primarily derived from the latex of certain trees, particularly the Palaquium gutta tree, which produces natural rubber-like substances. This makes latex rubber the correct context when discussing gutta percha.

Gutta percha is known for its use in dental materials and root canal treatments due to its biocompatibility, stability, and resistance to dissolve in solvents. It's important to clarify that while it is made from latex, the choices presented do not clearly indicate this relationship.

Zinc oxide, calcium sulfate, and polyvinyl chloride are unrelated to the composition of gutta percha. Zinc oxide is often used in dentistry as a temporary filling material or in cements, calcium sulfate is typically used in plaster and is not related to gutta percha, and polyvinyl chloride is a synthetic plastic polymer not connected with the natural substances used to create gutta percha.

Overall, understanding gutta percha requires recognition of its natural origins and contrasting it with synthetic and mineral substances used in other dental applications.