Question

find the relative clause. if it is nonrestrictive, set it off with commas. if it is restrictive, submit the text without making any changes.

during his tour of the organic chocolate factory, alan learned about the theobroma cacao which is a cacao tree native to the rain forests of central america.

Explanation:

A restrictive relative clause is essential to the meaning of the sentence. It defines or identifies the noun it modifies. In this case, "which is a cacao tree native to the rain forests of Central America" is necessary to identify what the Theobroma cacao is. Without it, the reader wouldn't know the specific nature of the Theobroma cacao being referred to.

Answer:

During his tour of the organic chocolate factory, Alan learned about the Theobroma cacao which is a cacao tree native to the rain forests of Central America.