Frozen is an adjective. Past participle of frozen is freeze.
B. She silently comforts her friend by squeezing his hand.
C. Characterization.
"Characterization is a literary device that is used step-by-step in literature to highlight and explain the details about a character in a story. It is in the initial stage in which the writer introduces the character with noticeable emergence. After introducing the character, the writer often talks about his behavior; then, as the story progresses, the thought-processes of the character."
