What are the coefficients for the balanced equation? ___Al₂(SO₄)₃(aq) + ___KOH(aq) → ___Al(OH)₃(s) + ___K₂SO₄(aq)

a) 1, 3, 2, 1
b) 1, 6, 2, 3
c) 2, 6, 2, 3
d) 2, 3, 1, 6