Match the column and find out the correct combination
`{:(,,"ColumnI","","ColumnII"),(,a,"Starch",p,"Protein synthesis"),(,b,"Haemoglobin",q,"Sex hormone"),(,c,"RNA",r,"Storage product"),(,d,"Steroid",s, Transport of gases "):}`

Options

A. a-r, b-p, c-s, d-q
B. a-r, b-s, c-p, d-q
C. a-s, b-r, c-p, d-q
D. a-r, b-s, c-q, d-p.

Answer

To solve the matching question, we will analyze each item in Column I and find the correct corresponding item in Column II.

### Step-by-Step Solution:

1. **Identify Starch**:
- Starch is primarily known as a carbohydrate that serves as a storage product in plants.
- **Match**: Starch (a) → Storage product (r)

2. **Identify Haemoglobin**:
- Haemoglobin is a protein found in red blood cells that is responsible for transporting oxygen and carbon dioxide in the blood.
- **Match**: Haemoglobin (b) → Transport of gases (s)

3. **Identify RNA**:
- RNA (Ribonucleic Acid) plays a crucial role in protein synthesis as it is involved in translating genetic information into proteins.
- **Match**: RNA (c) → Protein synthesis (p)

4. **Identify Steroid**:
- Steroids are a class of hormones that include sex hormones, which are involved in the regulation of various physiological processes.
- **Match**: Steroid (d) → Sex hormone (q)

### Final Matches:
- A (Starch) → R (Storage product)
- B (Haemoglobin) → S (Transport of gases)
- C (RNA) → P (Protein synthesis)
- D (Steroid) → Q (Sex hormone)

### Summary of Combinations:
- A → R
- B → S
- C → P
- D → Q

### Conclusion:
The correct combination is:
- **A-R, B-S, C-P, D-Q**