Final answer:
The correct answer to describe a person or their manner as 'quiet and reflective or depressed' is 'subdued,' as it aligns with the emotional state and behavior being described.
Step-by-step explanation:
The question asks for an adjective that describes a person or their manner as 'quiet and reflective or depressed.' The best fit from the options provided is B.subdued, as it conveys a state of being toned down, controlled, or less intense, often reflecting quietness or a reflective or depressed mood. Words like 'subservient' and 'substantive' do not capture the sense of mood or emotion implied in the description. 'Subsistence' is not an adjective and does not relate to mood or manner at all.
Key examples from the provided reference texts depict the characters in a quiet, subdued manner, which further aligns with the described state.