Answer:
Option D
Explanation:
Plan $NaHCO_{3}\rightleftharpoons Na^{+}+HCO_{3}^{-}$
$HCO_{3}^{-}$ is decomposed by acid releasing CO2
$HCO_{3}^{-}+H^{+}\rightarrow H_{2}O+CO_{2}$
If acid is stronger than $HCO_{3}^{-}$ then CO2 is released
Phenol is less acidic and thus does not liberate CO2 and NaHCO3