GKFix MCQ Question

What is the correct expression for Ka of a generic weak acid HA?

• A. Ka = [HA]/[H3O+][A⁻]
• B. Ka = [H3O+]^2
• C. Ka = [H3O+][A⁻]/[HA]
• D. Ka = [HA][H2O]/[H3O+][A⁻]