Thank you for the opportunity to help you with your question!
The Bronsted-Lowry theory extends the list of acid and base compounds beyond the neutral atoms and molecules. Bronsted-Lowry theorem also states that conjugate bases and conjugate acids are also acids and bases. The hydronium ion H3O (+1 charge) and the ammonium ion (NH4, +1 charge) are Bronsted-Lowry acids. The halogen ion (Cl - , -1 charge) is a Bronsted-Lowry base.
Answer Choice C.) CH3COO- and OH-
Please let me know if you need any clarification. I'm always happy to answer your questions.