CHOOSE THE CORRECT NOUN FOR THE UNDERLINED WORDS.
A black horse was running in the field.
A Proper noun
B Common noun
C Collective noun
D Material noun
Its (B) as it is not talking about any specific black horse . There are many in the world .If there is an name Ex. Rocket is a black horse . Then Rocket is a proper noun.
It will be option B because it is not a specific black horse. There are many black horses in the world and the one mentioned in the sentence can be any.