Answer: The correct option is (D) 8.
Step-by-step explanation: We are given to find the number of subsets that can be created from the set {1, 2, 3}.
Let the given set be represented by
A = {1, 2, 3}.
So, cardinality of the set is
n(A) = 3.
We know that
of a set has m number of elements, then the number of subsets of the set is given by

Therefore, the number of subsets of the given set A is

Thus, there are 8 subsets of the given set.
Option (D) is CORRECT.