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Solutions are 2, odd and m - n

Step-by-step explanation:

This is because the sum of two even integers will be even, and so it will always be divisible by 2.

Example: Sum of 4 + 6 = 10 which is divisible by 2.

This is because the product of an odd integer and an even integer is even, and if you add 1 to the product the result will be odd.

Example: Let m be 7. Then 2m + 1 = 14 + 1 = 15 which is odd.

This is because the difference between an odd and an even integer will always be odd.

Example: Let m be 6 and n be 3, then m - n = 6 - 3 = 3 which is odd

correct answer:

b.(19,-2)

explanation:

step-by-step explanation: