One Step in the Isolation of Pure Rhodium Metal (Rh)is

Multiple Choice

One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide from a solution containing rhodium(III) sulfate according to the following balanced chemical equation:
Rh₂(SO₄) ₃(aq) + 6NaOH(aq) → 2Rh(OH) ₃(s) + 3Na₂SO₄(aq)
What mass of sodium hydroxide is required to precipitate 68.0 g of rhodium(III) hydroxide from a solution containing excess rhodium(III) sulfate?

A) 5.88 g
B) 53 g
C) 17.6 g
D) 204 g
E) 68 g