Refer to the different sources of water given below.
(i) Tube well (ii) River (iii) Ocean (iv) Well (v) Pond (vi) Sea
Which of the following options shows the correct number of surface water sources (P) and groundwater sources (Q)?

Options

A. `{:(P,Q),(4,2):}`
B. `{:(P,Q),(3,3):}`
C. `{:(P,Q),(2,4):}`
D. `{:(P,Q),(5,1):}`

Explanation

To solve the question regarding the classification of water sources into surface water sources (P) and groundwater sources (Q), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Water Sources**: We have the following sources of water:
- Tube well
- River
- Ocean
- Well
- Pond
- Sea

2. **Classify the Sources**:
- **Surface Water Sources**: These are sources of water that are found on the surface of the Earth. The sources from the list that fall into this category are:
- River
- Ocean
- Pond
- Sea
- **Groundwater Sources**: These are sources of water that are found underground. The sources from the list that fall into this category are:
- Tube well
- Well

3. **Count the Sources**:
- Count the number of surface water sources (P):
- River (1)
- Ocean (2)
- Pond (3)
- Sea (4)
- Total Surface Water Sources (P) = 4
- Count the number of groundwater sources (Q):
- Tube well (1)
- Well (2)
- Total Groundwater Sources (Q) = 2

4. **Final Answer**: The correct number of surface water sources (P) is 4, and the number of groundwater sources (Q) is 2. Therefore, the answer is (P, Q) = (4, 2).