Answer:
Option c
Step-by-step explanation:
➝This is a double displacement reaction.
➝In this reaction Calcium Hydroxide displaces Nitrate from Nitric acid.
➝Nitric Acid displaces Hydroxide from calcium Hydroxide.
➝This is a neutralisation reaction
➝Nitric acid is a strong acid.
➝Calcium Hydroxide is a Alkali or Strong base.
➝Hence both neutralises each other.