The locus of the center of the circles such that the point (2,3) is the midpoint of the chord 5x +2y = 16 is

• A

  $2\mathrm{x}-5\mathrm{y}+11=0$

• B

  $2\mathrm{x}+5\mathrm{y}-11=0$

• C

  $2\mathrm{x}+5\mathrm{y}+11=0$

• D

  none of these