Respuesta :
The half-reaction that is correctly represents reduction is Au₃⁺ + 3e– -> Au. The correct option is C.
What is half-reactions?
The half-reaction is an oxidation and reduction reaction of a redox reaction. It can be either oxidation or reduction. The half-reaction occurs due to change in oxidation state of a reactant.
An example is Zn Cu galvanic cell.
Thus, the correct option is C) Au3+ + 3e– -> Au.
Learn more about half-reactions
https://brainly.com/question/10668307
#SPJ2