The woman who lives in the last house on our street is ___. Which of the following allows the above sentence to be completed as a simple sentence?

The first choice allows the sentence to be completed as a simple sentence because it provides a clear and concise description of the woman, using a coordinating conjunction to introduce an additional fact without making the sentence overly complex. By stating that the woman is "reclusive" and adding the phrase "is rarely seen outside of her home," this option maintains a direct relationship between the subject and the predicate, allowing it to stand alone as a complete thought.

In contrast, the other options introduce additional clauses or phrases that complicate the structure, making them less suitable for a simple sentence completion. For instance, the second option includes "we have actually never seen her," which adds another clause that makes the sentence compound, while the third and fourth options introduce additional information that detracts from the simplicity of the original assertion. Thus, option A best fits the requirement for completing the sentence as a straightforward, simple statement.