Match the following and choose the correct combination from the options given
`|{:(" ""Column I (Group Protista)",," ""Column II(Example)",,),(A. " " "Chrysophytes",,i. " " "Paramecium",,),(B. " " "Dinoflagellates",,ii. " " "Euglena",,),(C. " " "Euglenoids",,iii. " " "Gonyaulax",,),(D. " " " Protozons",,iv. " " "Diatoms",,):}|`

Options

A. a-iv, b-iii, c-ii, d-i
B. a-ii, b-iii, c-I, d-iv
C. a-ii, b-iv, c-iii, d-i
D. a-iii, b-iv, c-I, d-ii

Answer

To solve the matching question regarding the groups in Kingdom Protista and their examples, we will analyze each group and find the correct match from the options given.

### Step-by-Step Solution:

1. **Identify the Groups in Column I:**
- A. Chrysophytes
- B. Dinoflagellates
- C. Euglenoids
- D. Protozoans

2. **Identify the Examples in Column II:**
- i. Paramecium
- ii. Euglena
- iii. Gonyaulax
- iv. Diatoms

3. **Match Each Group with Its Example:**
- **A. Chrysophytes:** These are commonly known as golden algae, which are primarily photosynthetic. A well-known example of chrysophytes is **diatoms**. So, A matches with **iv. Diatoms**.

- **B. Dinoflagellates:** These are unicellular organisms, many of which are photosynthetic and can produce light (bioluminescence). An example of dinoflagellates is **Gonyaulax**. Thus, B matches with **iii. Gonyaulax**.

- **C. Euglenoids:** These organisms are characterized by their ability to change shape and are often motile due to flagella. A prominent example of euglenoids is **Euglena**. Therefore, C matches with **ii. Euglena**.

- **D. Protozoans:** These are unicellular eukaryotic organisms, many of which are motile. A common example of protozoans is **Paramecium**. Hence, D matches with **i. Paramecium**.

4. **Compile the Matches:**
- A → iv (Diatoms)
- B → iii (Gonyaulax)
- C → ii (Euglena)
- D → i (Paramecium)

5. **Final Combination:**
- A (Chrysophytes) - iv (Diatoms)
- B (Dinoflagellates) - iii (Gonyaulax)
- C (Euglenoids) - ii (Euglena)
- D (Protozoans) - i (Paramecium)

### Conclusion:
The correct combination is:
- A → iv
- B → iii
- C → ii
- D → i