Suppose n is an integer. Select all statements below that are true:
(2 points)
Responses
n2 + n is always an even integer
n 2 + n is always an even integer
n2 + n is always an even integer when n is even
n 2 + n is always an even integer when n is even
n2 + n is always an even integer when n is odd
n 2 + n is always an even integer when n is odd
n2 + n is never an even integer when n is odd
n 2 + n is never an even integer when n is odd
n2 + n is is never an even integer
n 2 + n is is never an even integer
n2 + n is sometimes an even integer
n 2 + n is sometimes an even integer
n2 + n is always an even integer when n is even
n2 + n is never an even integer when n is odd