The equilibrium constant for the reaction A(g)+2B(g)→C(g) is 0.25 dm⁶ mole⁻². In a volume of 5 dm³, what amount of A must be mixed with 4 moles of B to yield 1 mole of C at equilibrium.
(a) 12.5 moles
(b) 26 moles
(c) 25 moles
(d) 13 moles