Step 1: Understanding the Concept:
This is an analogy question that relates a place to the raw material that is processed there.
Step 2: Key Formula or Approach:
Define the relationship in the stem pair: REFINERY: PETROLEUM. A "refinery" is a factory or facility where a raw material, "petroleum," is processed and made into useful products. The relationship is "X is a place where Y is processed."
Step 3: Detailed Explanation:
Let's test the "X is a place where Y is processed" relationship with the options:
- (A) Is a mill a place where grain is processed? Yes, a mill is a place where grain is ground into flour. This is a strong match.
- (B) Is a mine a place where ore is processed? No, a mine is where ore is extracted or dug from the ground. It is then sent elsewhere for processing.
- (C) Is a warehouse a place where merchandise is processed? No, a warehouse is where merchandise is stored.
- (D) Is a generator a place where electricity is processed? No, a generator is a machine that produces electricity.
- (E) Is a forest a place where lumber is processed? No, a forest is where trees grow. Trees are harvested and then taken to a mill to be processed into lumber.
Step 4: Final Answer:
The relationship of a place of processing to its raw material is best mirrored in the pair MILL: GRAIN.