What type of sentence is this? ashley wants peperoni pizza, but her friend toni is a vegetarian.
a-compound
b-simple
c-complex
d-compound-complex

A) Compound

Explanation:

A compound sentence is formed by joining two independent clauses connected by a coordinating conjunction - for, and, nor, but, or, yet, so.

"Ashley wants peperoni pizza, but her friend Toni is a vegetarian" is constituted of two independent clauses. The clauses are related, and they were joined by the coordinating conjunction "but". Thus, we have a compound sentence.

Further information:

A simple sentence is constituted of a single independent clause. It has a subject and a predicate, and it expresses a complete thought.

A complex sentence is formed by joining an independent clause and a dependent one. A dependent clause needs the independent one to give it context, so that it makes sense. It does not express a complete thought on its own.

A compound-complex sentence is formed by two independent clauses and a dependent one, at least.

the answer is b. my dude