There are
enter your response here 1-member subsets of the set {a, b, c}.
If we have the set {a, b, c}, there are 3 1-member (or singleton) subsets that we can create from this set, each containing just one of the elements of the original set. The 1-member subsets of the set {a, b, c} are:
1. {a}
2. {b}
3. {c}
So there are 3 1-member subsets of the set {a, b, c}.