Variables person1, person2, and person3 are read from input. create a set named uniqueₙames containing person1, person2, and person3.
A) uniqueₙames = {person1, person2, person3}
B) uniqueₙames = {person1, person2}
C) uniqueₙames = {person1, person3}
D) uniqueₙames = {person2, person3}