Question

For the following reactions, equilibrium constants are given:
S(s)+O₂ (g)⇌SO₂(g);K₁ =10⁵²
2S(s)+3O₂(g)⇌2SO₃(g);K₂=10¹²⁹
Find the equilibrium constant for
2SO₂+O₂(g)⇌2SO₃(g);K₃

A. 10¹⁸¹
B. 10¹⁵⁴
C. 10²⁵
D. 10⁷⁷