An acid-base reaction will always produce water and which one of the
following?
A. Flames
B. Acid
C. Color
D. Salt

Option D) Salt

Explanation:

An example of acid-base reaction is

HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

Acid + base → Salt + Water.

Here, water H2O and salt, NaCl are produced.

Usually, the acid, aqeous HCl reacts completely with an appropriate amount of the base, aqueous NaOH to produce salt, aqueous NaCl and water, liquid H2O only, in a process also known as neutralization reaction

where is the following

explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)