Final answer:
If the number of elements of two or more sets are equal and elements of both are different, they are called: C) Different Sets
Step-by-step explanation:
Two sets with the same number of elements, but with different elements, are called Different Sets.
For example, if set A contains the elements {1, 2, 3} and set B contains the elements {4, 5, 6}, both sets have three elements but the elements themselves are different, so they are called different sets.