If `n` is a natural number, then `sqrt(n)` is: (a) always a natural number (b) always an irrational number (c) always an rational number (d) sometimes a natural number and sometimes an irrational number

Explanation

To solve the question, we need to analyze the nature of the square root of a natural number \( n \).

### Step-by-Step Solution:

1. **Understanding Natural Numbers**:
- Natural numbers are the set of positive integers: \( 1, 2, 3, 4, \ldots \).

2. **Square Root of Natural Numbers**:
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