The topic sentence is the last one "A hero is someone who sacrifices himself for a greater cause."
To choke on something ..gagged is the past tense of gag
Nominative case pronouns are pronouns that are generally used as a <span>subject in the sentence and they are the direct doer of the action (verb). Nominative case pronouns include I, you, he, she, they, it and we. The sentence that correctly uses a nominative case pronoun is: Trent and I played a board game. The correct answer is option D.</span>