the correct option is A) You choose green or you choose red.
Explanation:
the coordinating conjunction is "or".
definition of a coordinating conjunction: <em>a conjunction placed between words, phrases, clauses, or sentences of equal rank, e.g. and, but, or.</em>
A conjunction which makes a connection between two parallel words, two parallel phrases, or independent clauses is called a coordinating conjunction. The coordinating conjunctions are and, but, or, as well as, for, so, yet, etc. Examples of Coordinating Conjunction: Alex stood first and got a prize.
