Match the columns I and II, and choose the correct combination from the options given.
`{:(,"Name","Chromosome number in gamete"),(I.,"Butterfly","a. 6"),(II.,"Housefly","b. 39"),(III.,"Dog","c. 21"),(IV.,"Cat","d. 19"),(V.,"Rat","e. 190"):}`

Options

A. a-I, b-II, c-III, e-IV, d-V
B. b-I, e-II, d-III, c-IV, a-V
C. e-I, a-II, b-III, d-IV, c-V
D. e-I, a-II, c-III, b-IV, d-V

Answer

To solve the matching question between the organisms and their respective chromosome numbers in gametes, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Organisms and Their Chromosome Numbers**:
- We have the following organisms:
- Butterfly
- Housefly
- Dog
- Cat
- Rat

2. **Match Each Organism with Its Chromosome Number**:
- Butterfly: The chromosome number in a gamete is **190**.
- Housefly: The chromosome number in a gamete is **6**.
- Dog: The chromosome number in a gamete is **39**.
- Cat: The chromosome number in a gamete is **19**.
- Rat: The chromosome number in a gamete is **21**.

3. **List the Matches**:
- Butterfly → 190 (E)
- Housefly → 6 (A)
- Dog → 39 (B)
- Cat → 19 (D)
- Rat → 21 (C)

4. **Compile the Final Matches**:
- I. Butterfly → E (190)
- II. Housefly → A (6)
- III. Dog → B (39)
- IV. Cat → D (19)
- V. Rat → C (21)

5. **Select the Correct Combination from the Given Options**:
- After matching, we check the options provided:
- Option 1: Incorrect
- Option 2: Incorrect
- Option 3: Correct (matches all the identified pairs)
- Option 4: Incorrect

### Final Answer:
The correct combination is **Option 3**.