Let \( S = \{1, 2, 3, \dots, 10\} \). The number of subsets of \( S \) containing only odd numbers is:
Show Hint
In set theory, "only odd numbers" means elements are restricted to the odd set. If the empty set \( \emptyset \) is included, the answer is 32; if not, it is 31. Usually, multiple-choice options guide this choice.