The diameter of a circle are along 2x+y−7=0 and x+3y−11=0. Then the equation of this circle which also passes through (5,7) is
a. x²+y²-4x-6y-16=0
b. x²+y²-4x-6y-20=0
c. x²+y²-4x-6y-12=0
d. x²+y²+4x+y-12=0

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