Question

COUNTY ATTORNEY (with the gallantry of a young politician). And yet, for all their worries, what would we do without the ladies?

Answer 1

The primary purpose of these stage directions (with the gallantry of a young politician) is to indicate a character's tone of voice.
Given that he is referring to the ladies, he has to change the tone of his voice a bit to appeal to them more. He cannot speak in a manly voice which he would normally use while speaking to other men, but rather appear more suave and gentleman-like.

Answer 2

Answer: B

Explanation:

 to indicate a character's tone of voice.