Which of the following is the equation of the line in the xy-plane that has slope 0
(I) x = 2
(II) y = 5
(III) x + y = 0	Choose the correct choice from the following answers:
A) I
B) III
C) I&II
D) II
E) II& III
y =mx+c therefore y-c= mx then m =(y-c)/x   m=0 means y = c constant ..= II   II
<result>D</result>
Which of the following is the equation of the line in the xy-plane that has slope 0
(I) x = 2
(II) y = 5
(III) x + y = 0