Does the sentence "The most recent, the CretaceousPaleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs." provide a valid answer to the question "What happened in the Carboniferous?"

A: no

Does the sentence "In the twentieth century it became an organized event held during the 10 days preceding Lent (according to the Greek Orthodox calendar)." provide a valid answer to the question "In what century did the Carnival become an organized event?"

A: yes

Does the sentence "The most common explanation of what occurred was that landlords decided to burn their low property-value buildings and take the insurance money as it was more lucrative to get insurance money than to refurbish or sell a building in a severely distressed area." provide a valid answer to the question "Why did some landlords burn their own buildings?"

A: yes

Does the sentence "The name was so popular that university board members made "wildcats" the official nickname just months later." provide a valid answer to the question "What was the official nickname of Northwestern's athletic teams prior to 1924?"

A:
no