The correct option is: make the inflection in the main part of the compound form.
Compound nouns are nouns that are made up of two words. The word can be of different type, for example:
- noun + noun: bedroom
- noun + verb: haircut
These terms together form a different meaning.
If you have to form the plural you should distinguish the central word. For example:
appletree> appletrees
mother-in-law> mothers-in-law
How she sounds is a clue that she is angry. Usually when a person hisses something, they are mad. If this is incorrect, I am sorry.
All honesty I could be wrong but I’ll say number 4
It is C it made most sense to me too