Answer:
c Acid + base = conjugate base + conjugate acid
Step-by-step explanation:
In a Bronsted-Lowry acid-base reaction, the original acid gives up its proton and becomes a conjugate base. In like manner, the original base accepts a proton and becomes a conjugate acid. For every acid, there is a conjugate base and for every base, there is a conjugate acid:
HA ⇄ H⁺ + A⁻
acid conjugate base
B + H⁺ ⇄ HB⁺
base conjugate acid