Answer:
I think you should leave that exact answer because compound sentences can be read as separate sentences once the conjunction is removed and still make sense.
Explanation:
Conjunction - word used to link two sentences. For example, but, and, or, yet, so, etc.
Learn to read and write with new words words that means the same as the words you was gone originally write or speak!
Assuming this question is asking for a definition/synonym/"other word" for chivalrous, the answer is courteous. leaving a more comfortable seat for an elderly person is a respectful and polite gesture, which shows courtesy.