Answer:
D. minor
Explanation:
You can think of minor as small, so they are studying the small parts of a topic, or the specific parts to it.
The barber must choose between hurting an enemy or being an ethical worker
Palindrome words are words which spell the same when read backwards.
The examples are as follows :-
1- Racecar
Now if you spell the work from backwards the spelling doesn't change.
2- Level
3- Madam
4- Anna
5- Mom
6- Dad
7- Noon
Hope this helps!