The following sentence contains . The labradoodle, which has quickly become one of the most desired dog breeds for those with pet allergies, offers the best features of a lab and a poodle.

two main clauses

one main clause and two subordinate clauses

one main clause and one subordinate clause

one main clause and no subordinate clauses

One main clause and one subordinate clause.

Explanation:

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.