The correct answer is A.
From all of the given options, the best way to depict a character is by indirect characterization.
This refers to providing information about the character's personality and traits through thoughs, actions and dialogue rather than write it down explicitely.
Answer - I returned to Rainy Mountain in July. My grandmother had died in the spring, and I wanted to be at her grave. She had lived to be very old and at last infirm. Momaday also tells us that Rainy Mountain rises out of the plain in Oklahoma, northwest of the Wichita Range.
Answer: The theme is that Lemon Brown's treasure may not be special to everyone but it is special to him.
Explanation: Good luck!