I am very sorry if this is wrong but i believe that it is 5 levels, sorry if i am wrong in the end.
Answer:
Option c
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.
He ascended the throne on the 3rd of April 1743
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