Researchers Conducted a Study and Determined That Students Who Carpool

Multiple Choice

Researchers conducted a study and determined that students who carpool have less friends than students who ride the bus to school. Can we conclude that carpooling causes students to have less friends?

A) Yes, this is an observational study and we can conclude causation.
B) Yes, this is an experiment and we can conclude causation.
C) No, this is an observational study and we cannot conclude causation.
D) No, this is an experiment and we cannot conclude causation.