Respuesta :

Hello!

I'm going to assume that the noun is "author". The correct possessive form would be "author's", since when indicating that something belongs to someone else, you are to use an apostrophe followed by an s.

:)
Of these options the answer is c).
a) agencys
b) agencies
c) agency’s
d) agencys’

I don't know if these are the right fill in words though. They were right when I took my class though.

Hope I helped.
(Brainliest would be greatly appreciated!)