Answer:
B. Shows the importance of the main cause.
D. Improves the sound of writing.
E. Provides a transition between clauses​.
Step-by-step explanation:
In English language, a conjunction can be defined as an English word that is typically used for connecting two or more clauses, words, phrases or sentences. Some examples of conjunction are but, and, although, because, or, yet, etc.
A subordinate conjunction can be defined as an English word that joins or connects an independent clause and a dependent clause.
A clause can be defined as a group of words that comprises of both a subject and predicate (finite verb).
An independent clause can be defined as a clause that expresses a complete thought while standing alone as a simple sentence and comprises of at least a subject and a verb (predicate).
A dependent clause can be defined as a type of clause that is inserted into another clause to make meaning or express a complete thought.
A subordinate conjunction does all of the following:
I. It shows how important a main cause is in a sentence.
D. It improves the structure or sound of a literary work.
E. It is used as a transition between an independent clause and a dependent clause.