B. There is something that they do not understand in that part.
The answer is A. pageantry
The answer would be exposition because he is explaining something
Explanation:
manu's father is 24 years younger than manu's grandfather and 30 years older than him. The sum of ages of all the three persons is 144 years. find the age of each of him.
There are quite a few English words that contain letters that are not suppose to be said including: debt and write. These left out letters can often tell us about the history and origin of the word and some places in the world has these which can tell us about who lived there at the time. This is called etymology.
Hope that this answer helped. ☺