Read this excerpt from "Heads Up on Sports Safety." Before modern helmets, in 1904, the Chicago Tribune reported 18 football deaths and 159 serious injuries—in that one year alone. Because the game was lawless and lacking in safety equipment, football was a brutal, deadly sport.

Which signal word points to a cause and effect in the paragraph?

was
serious
reported
because

Because is the correct answer

the correct answer is the following.

one of the groups i belong to is the boy scouts. this is a problem-solving group because it has tasks that we need to solve in order to other people in different activities such as the rescue of lost pets, or elder people in need.

the other group i belong to is kids pro environment, and is an information-sharing group that tries to create conscience about the risks and problems that generate pollution in our cities. we share information to other students and parents on the importance of keep our communities clean and our skies clear.  

c) vampires in history and modern life.