The correct answer is: C. Path : Highway
A brook is a small stream, while a river is a larger body of water. A path is a narrow trail, while a highway is a major road. Both brooks and paths are smaller than rivers and highways, respectively. Additionally, brooks and paths are often used for recreation, while rivers and highways are often used for transportation.
The other
options are incorrect because they do not have the same relationship as the original pair of words. For example, a pen is a writing instrument, while paper is a writing surface. A yard is a piece of land, while an alley is a narrow passageway between buildings. A vein is a blood vessel, while an artery is a blood vessel that carries blood away from the heart.