Read the news headline and answer the following question: how do these two events relate to each other? traffic on u. s. highway 101 slows as giant hot-air balloon makes emergency landing a. they are correlated because the traffic slowdown occurred at the same time as the emergency landing. b. they are correlated because the hot-air balloon and the traffic are related to travel. c. they are causally related because the emergency landing caused traffic to slow down. d. they are causally related because traffic slowdown caused the emergency landing.