Step 1: Understanding the Concept:
This is an analogy question based on classification. We need to identify the "is a type of" relationship.
Step 2: Detailed Explanation:
Let's form a bridge sentence. CALCIUM is a specific type of MINERAL. The relationship is specific example is a type of general category.
Now let's analyze the answer choices:
(A) sugar: carbohydrate - SUGAR is a specific type of CARBOHYDRATE. This perfectly matches the relationship.
(B) salt: solution - Salt can be dissolved to make a solution, but it is not a type of solution.
(C) enzyme: food - An enzyme is a protein that can be found in food, but it is not a type of food.
(D) milk: cheese - Cheese is made from milk. This is a "product made from source" relationship.
(E) calorie: diet - A calorie is a unit of energy, and a diet is a plan for eating. A diet is composed of foods which have calories, but a calorie is not a type of diet.
Step 3: Final Answer:
The relationship "CALCIUM is a type of MINERAL" is analogous to "SUGAR is a type of CARBOHYDRATE."