C-05-Q096mediumsingle_mcqThe solution of 3x⋅9y=81, 2x−y=83^x \cdot 9^y = 81,\ 2^{x-y} = 83x⋅9y=81, 2x−y=8 is —a(4,1)(4, 1)(4,1)b(1,4)(1, 4)(1,4)c(2,1)(2, 1)