Which of the following are equal?

Options

A. ` A = { 2,4,6} and B = { 1,3,5,6}`
B. ` A = { x : x = 4 n , n in N, n le 3 } and B = { x: x = 2n , n in N and n le 6} `
C. ` A = { a,e,I,o,u } and B = { a,e,I,{o,u}}`
D. None of these

Explanation

To determine which of the given sets are equal, we need to analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Sets**:
- Let's denote the sets as follows:
- Set A: {a, b}
- Set B: {1, 3, 5}
...