Directions: Question consists of five statements followed by options consisting of three statements put together in a specific order. Choose the best option which indicates a valid argument, that is, where the third statement is a conclusion drawn from the preceding two statements.

A. Traffic congestion increases carbon monoxide in the environment
B. Increase in carbon monoxide is hazardous to wealth
C. Traffic congestion is hazardous to health
D. Some traffic congestion does not cause increase carbon monoxide
E. Some traffic congestion is not hazardous to health