What’s the simple subject in the following sentence

Shuttles

Explanation:

A simple subject is a subject that has just one noun as the focus of the sentence. Normally, the simple subject of a sentence will come before the verb. While the complete subject may contain modifiers (adjectives, relative clauses, and prepositional phrases), the simple subject contains only one, unmodified person, place, thing, or idea.

he is suggesting that this widow is a strong woman, who is giving constructive criticism and she has enough to worry about, and she takes care of him, so he does not take it to heart.

a and b are the correct answer to what your looking fior