The answer is B. Discovery.
Novelty is the state of being new or unusual. Oldness is the state of being old or long-established. Newness is the state of being new or recent. Discovery is the act of finding something new or previously unknown.
The relationship between novelty and oldness is that novelty is the opposite of oldness. Novelty is something that is new or unusual, while oldness is something that is old or long-established. The relationship between newness and discovery is that newness is the result of discovery. Discovery is the act of finding something new or previously unknown, and newness is the state of being new or recent.
The other options do not have the same relationship as the original pair of words. Culture is the customs, arts, social institutions, and achievements of a particular nation, people, or other social group. Model is a three-dimensional representation of a physical object or system, typically on a smaller scale than the original. Antiquity is the ancient period, especially the period before the Middle Ages.