Indecency is the correct choice here.
Hope this is helpful!
It seems the second answer you have provided for this question is the best fit for what the question is specifically asking. Have a great day!
A verb is the action that the subject does.
The verb in this sentence is was.
Night (the subject or noun) is doing the action of "being" quiet (the adjective since it describes the night)
Hope this helped!
~Just a girl in love with Shawn Mendes
