Which of the fallowing is proper noun A newspaper B Conchita Alonso C river D skyscraper?

* Proper nouns are specific names of people, places, or things. They are always capitalized.

Let's look at the other options:

* A newspaper: This is a common noun, referring to any newspaper.

* C river: This is a common noun, referring to any river.

* D skyscraper: This is a common noun, referring to any tall building.

Conchita Alonso is a specific person's name, making it a proper noun.