Which of the following is parasitic algae :-

Options

A. Cephaleuros
B. Harveyella
C. Both (A) and (B)
D. None of the above

Answer

To determine which of the given options is a parasitic algae, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks us to identify which option represents a parasitic algae. Parasitic algae are those that derive nutrients from a host organism.

2. **Evaluate Each Option**:
- **Option 1: Cephalyreus**: This is a genus of algae known to be parasitic. Therefore, this option is a candidate.
- **Option 2: Parasitic Red Algae**: This option refers to a group of red algae that are known to be parasitic. This is also a candidate.
- **Option 3: Parasitic Red Algae**: This option is a repetition of Option 2, which confirms that it includes parasitic red algae.
- **Option 4: None of the above**: This option suggests that none of the previous options are correct, which we have already determined is incorrect.

3. **Identify the Correct Answer**: Since Options 1 and 2 both refer to parasitic algae, and Option 3 includes the same information as Option 2, we can conclude that the correct answer is Option 3, which encompasses both parasitic algae.

### Final Answer:
The correct answer is **Option 3: Parasitic Red Algae**.

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