A. Svante Arrhenius
B. Robert Boyle
C. Antoine Lavoisier
D. Dmitri Mendeleev
Svante Arrhenius, a Swedish scientist, proposed the Arrhenius Theory of acids and bases in 1884. According to this theory, acids are substances that dissociate in water to produce \(H^+\) ions, while bases dissociate to produce \(OH^-\) ions.
Therefore, the Correct Answer is A.