set a consists of the integers from 1 to 12 , inclusive , while set b consists of the integers from 5 to 15 , inclusive . how many distinct integers do belong to the both sets at the same time ?
"a = { 1,2 , 3,4 , 5,6 , 7 , 8 , 9 , 10 , 11 , 12 } b = { 5,6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 } common elements = { 5,6 , 7 , 8 , 9 , 10 , 11 , 12 } = 8 elements answer : option a ."
add(5, 1)