Can nouns be singular, plurar, or possessive

All of the above

Explanation:

To show possession with regular singular nouns you write apostrophe "s"  

To show possession with regular plural nouns that end with "s," simply add an apostrophe at the end. Examples of this type of plural possessive noun include: Airplanes' wings. Alarms' ringing.

the telephone is the answer

answer; women of color tend to be misrepresented as either "good girls" or "bad girls';