The correct answer is A. Pat hung her head without speaking a word.
Indirect characterization means that a character is described implicitly - the author did not directly say what a character is like, but rather we as readers have to infer based on their behavior and what they say. Therefore, C is incorrect because that is direct characterization; and B and D are incorrect because they are not characterization at all. Based on A, we can infer that Pat is sad or upset, which is why (s)he is described indirectly.
The sentence about landlords because it is against the upper class and addresses that upper classes take advantage of the lower classes to get what they want
