You have a bottle of solid barium hydroxide and some dilute sulfuric acid. You place some of the barium hydroxide in water and slowly add sulfuric acid to the mixture. While adding the sulfuric acid, you measure the conductivity of the mixture.

(a) Write the complete, balanced equation for the reaction occurring when barium hydroxide and sulfuric acid are mixed.
(b) Write the net ionic equation for the barium hydroxide and sulfuric acid reaction.
(c) Which diagram represents the change in conductivity as the acid is added to the aqueous barium hydroxide? Explain briefly.