If y is an integer, which of the following must be an even integer?	Options:
A) y^2-y-1 B) y^2-4y+6 C) y^2-5y+5 D) y^2+3y+8 E) y^2+2y+10
Check the options by plugging in some values ( Preferably smaller integers like 1 and 2 )   A: y^2-y-1 = -1 { If y = 1 }   B: y^2-4y+6 = 3 { If y = 1 }   C: y^2-5y+5 = 1 { If y = 1 }   y^2+3y+8: y^2+3y+8 = 12 { If y = 1 }y^2+3y+8 = 18 { If y = 2 }   E: y^2+2y+10 = 13 { If y = 1 }   Thus the only possible answer is (y^2+3y+8)
<result>D</result>
If y is an integer, which of the following must be an even integer?