If `S={1,3,5,7,11,13},` then which of the following are the subsets of S ?
`A={2,4},B={5,7},C={5,11,13},D={1,2,5}`

Explanation

To determine which of the given sets are subsets of \( S = \{1, 3, 5, 7, 11, 13\} \), we will check each set \( A, B, C, \) and \( D \) to see if all of their elements are contained within \( S \).

### Step-by-Step Solution:

1. **Check Set A:**
- Set \( A = \{2, 4\} \)
- We need to see if both 2 and 4 are in set \( S \).
- Elements of \( S \) are \( \{1, 3, 5, 7, 11, 13\} \).
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