Find the Indicated Maxima or Minima $f(x, y)=x^{2}-14 x+y^{2}-16 y$ , Subject To

Multiple Choice

Find the indicated maxima or minima.
-Minimum of $f(x, y) =x^{2}-14 x+y^{2}-16 y$ , subject to $2 x+3 y=12$

A) -61 when $x=3, y=2$
B) -68 when $x=1, y=5$
C) -15 when $x=0, y=1$
D) -24 when $x=2, y=0$