Point M is located at (3, 5) in the coordinate plane. Point M′ is located at (3, –5). Which statement is true?
 A
Point M′ is 6 units from point M.
 B. 
Point M′ is 8 units from point M.
 C. 
Point M′ is the image produced by reflecting point M across the x-axis.
 D. 
Point M′ is the image produced by reflecting point M across the y-axis.