Answer:
Among the options given on the question the correct answer is option B.
Sir is an honorary title, whereas titles like Baron are inherited.
Explanation: The described titles in the question like as Baron,Duke and Earl are different from the title Sir. There is peerage system in United Kingdom which define the rank and honor of the title.
The Duke is only lower from the monarch which means the second highest person in the rank of power and honor. The Earl title is inherited by the eldest son of the Duke. Earl is the member of gentry like as the Duke.
Baron is the soldier who served in the war with efficiency and ranked high.The Sir title is given to those who are rewarded with the 'Knighthood'. Knighthood is the highest reward for a non royal person. If any person contribute greatly in any sector he can be awarded as the Knighthood.But the son or daughter of a Knighthood holder can not inherit the title.
Therefore, the answer of the question is option .
