What is an example of a coordinating conjunction?

A coordinating conjunction is a word that connects words, phrases, or clauses that are of equal syntactic importance. In this case, "and" is a classic example of a coordinating conjunction because it joins two or more similar elements together. For instance, in the sentence "I like to read and write," the conjunction "and" links the two verbs, indicating that both actions are equally important.

The other options provided do not serve this purpose. "Although" and "unless" are subordinating conjunctions, which introduce dependent clauses and indicate a relationship of dependence, while "because" is also a subordinating conjunction that introduces a reason or cause. They can connect clauses but do not coordinate elements of equal rank, which is the defining feature of coordinating conjunctions.