<span id="docs-internal-guid-cbf02184-7fff-5915-e887-8b3181466cbc"><p dir="ltr"><span>The context suggests that the blank should be filled with a coordinating conjunction that connects two noun phrase, “employees’ work performance” and “their work ethic and loyalty.” </span></p><p dir="ltr"><span>All the first three choices are coordinating conjunctions that connect grammatically parallel structures. </span></p><p dir="ltr"><span>However, when (A) "</span><span>nor"</span><span> is used as a coordinating conjunction to connect two clauses, the second clause is inverted, which is not the case in the question. </span></p><p dir="ltr"><span>(B) "</span><span>yet", </span><span>when used as a coordinating conjunction, connects either two clauses or two adjectives, not nouns or noun phrases. </span></p><p dir="ltr"><span>(C) "</span><span>so"</span><span> connects two independent clauses, not nouns or noun phrases. </span></p><p dir="ltr"><span>On the other hand, (D) "</span><span>as well" as</span><span> is a phrase that acts as a conjunction to connect two nouns, noun phrases, or adjectives. Here, it fits the structure and the context as well. Thus, (D) "</span><span>as well as"</span><span> is the correct answer. </span></p></span>