According to five kingdom classification protista includes:-

Options

A. Chrysophytes, Dinoflagellates, Protozoans
B. Diatoms, Euglenoids, Virus
C. Dinoflagellates, Protozoans, Red algae
D. Chrysophytes, Bryophytes, Protozoans, Slime mould

Answer

### Step-by-Step Solution:

1. **Understand the Five Kingdom Classification**:
- The five kingdom classification system was proposed by R.H. Whittaker. It categorizes all living organisms into five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia.

2. **Focus on the Protista Kingdom**:
- The Protista kingdom includes a diverse group of organisms that are primarily unicellular eukaryotes. This means they have a true nucleus and membrane-bound organelles.

3. **Analyze the Options**:
- **Option A**: Chrysophytes, Dinoflagellates, Protozoans
- **Option B**: Diatoms, Euglenoids, Virus
- **Option C**: Dinoflagellates, Protozoans, Red Algae
- **Option D**: Chrysophytes, Bryophytes

4. **Evaluate Each Option**:
- **Option A**: This option includes chrysophytes (golden algae), dinoflagellates, and protozoans, all of which are indeed part of the Protista kingdom.
- **Option B**: While diatoms and euglenoids are part of Protista, viruses are not classified within any of the five kingdoms as they are not considered living organisms.
- **Option C**: Dinoflagellates and protozoans are correct, but red algae can be multicellular and are classified under Plantae, not Protista.
- **Option D**: Bryophytes are also not part of Protista; they belong to the Plantae kingdom.

5. **Select the Correct Answer**:
- The only option that correctly lists organisms included in the Protista kingdom is **Option A: Chrysophytes, Dinoflagellates, Protozoans**.

### Final Answer:
According to five kingdom classification, Protista includes: **Chrysophytes, Dinoflagellates, Protozoans** (Option A).

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