Passage Summary: Some types of math were invented a long time ago just for the sake of math, but scientists only found a way to use them for physics many years later.

Reasoning: Gauge field theory and differential geometry were both developed as abstract mathematical concepts in the 19th century long before they were applied to quantum mechanics and general relativity.

Analysis: This is a 'Principle' question that functions like a 'Most Strongly Supported' task. We need to find a general rule that encompasses both examples provided. Both stories describe a significant time gap between the creation of a mathematical tool and its eventual utility in a scientific field. Look for an answer that suggests mathematical research can have value for future scientific discoveries that the original mathematicians could not have predicted.