If the coordinates of the ends of a diameter of a circle are \( (-2,3) \) and \( (3,4) \) . Which is the equation of the circle?

A \( x^{2}+y^{2}-x-7 y+6=0 \)

B \( x^{2}+y^{2}-5 x+5 y+4=0 \)

C \( x^{2}+y^{2}-3 x-7 y+4=0 \)