Assertion: Alage can bridge the gap between demand and supply of proteinaceous diet, worldwide.
Reason: Chlorella and Spirullina are unicellular proteinaceous food suppliment.

Options

A. If both assertion and Reason are true and the reason is a correct explanation of the assertion.
B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion and Reason are False.

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that algae can bridge the gap between the demand and supply of proteinaceous diets worldwide. This implies that algae can serve as a significant source of protein for people globally.

2. **Analyzing the Reason**: The reason provided is that Chlorella and Spirulina are unicellular proteinaceous food supplements. This means that these specific types of algae are rich in protein and can be consumed as dietary supplements.

3. **Evaluating the Truth of the Assertion**: Algae, particularly Chlorella and Spirulina, are known for their high protein content. Spirulina, for instance, contains about 4 grams of protein per tablespoon, while Chlorella consists of 50-60% protein. This supports the assertion that algae can help meet protein demands.

4. **Evaluating the Truth of the Reason**: Both Chlorella and Spirulina are indeed unicellular algae that are recognized for their high protein content and are marketed as dietary supplements. This confirms the reason as true.

5. **Determining the Relationship**: Since both the assertion and the reason are true, and the reason provides a correct explanation for the assertion (as the high protein content of these algae supports the claim that they can bridge the protein gap), we conclude that the relationship is valid.

### Conclusion:
Both the assertion and the reason are true, and the reason correctly explains the assertion.

### Final Answer:
Both assertion and reason are true, and the reason is the correct explanation of the assertion.

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