Coming from the kitchen was the sweet … of Mummy's soup.

1. Analyze the question The sentence is about something "coming from the kitchen", described as sweet, and it belongs to Mummy's soup. We need the word that best fits food that smells good.

2. Explain the concept These four words all relate to smell, but they are used differently:

• Aroma: a pleasant, appetising smell, especially of food or drink (coffee, soup, baking bread).
• Odour: a smell, often unpleasant (body odour, foul odour). It is neutral to negative.
• Fragrance: a sweet, pleasant smell, usually of flowers, perfume, or soap.
• Scent: a smell, typically of flowers, perfume, or an animal's trail (a dog follows a scent).

This is a question of collocation, meaning which words naturally go together.

3. Solution

• Odour: usually unpleasant, so it doesn't suit "sweet".
• Fragrance: suits perfume and flowers, not soup.
• Scent: suits flowers or perfume, or tracking an animal.
• Aroma: the standard word for the appetising smell of cooked food.

"The sweet aroma of Mummy's soup" is the most natural and accurate choice. "Fragrance" and "scent" are not strictly wrong in everyday speech, but "aroma" is the best fit for food, and the question asks for the word that best completes the sentence.

4. Answer A. aroma

5. Tip Link words to their typical partners:

• Aroma → Food (think "A" for "appetising")
• Fragrance/Scent → Flowers and perfume
• Odour → Unpleasant smells

When you see a smell word in an exam, ask: "What is producing the smell?" That usually gives you the answer.