A. Acids and bases don't react with each other. --> False. Acids and bases react in reactions called neutralization reactions, whose products are salt and water.
B. Acids mixed with bases neutralize each other. --> True. See above.
C. Acids mixed with bases make stronger bases. --> False. Acids and bases react to neutralize each other, so they would weaken each other, not result in a stronger base or a stronger acid.
D. Acids mixed with bases make stronger acids. --> False. See above.
Answer:
B. Acids mixed with bases neutralize each other