Which on these sentences contains a subordinate clause? A) The poem that I read in class is by Maya Angelou. B) The maple tree in the back yard grew to be quite tall. C) Working the early morning shift can be very exhausting. D) The red cardinal stood out against the white snow and the black barn.

A) The poem that I read in class is by Maya Angelou

Explanation:

A subordinate clause is a clause that does not express a complete thought. As such, it cannot stand on its own. These clauses do have a subject and a predicate, but are dependent on the other words to form a complete sentence.

In this particular case, the only sentence that is subordinate is "The poem that I read in class is by Maya Angelou". It does have a subject and a predicate, but does not share a complete thought. An example of a complete sentence would be: The poem that I read in class is by Maya Angelou is quite interesting.

lemme actually be useful and say i believe the answer is the first one.