I. All wheeled conveyance that travel on the higway are

I. All wheeled conveyance that travel on the higway are polluters.
II. Bicycles are not polluters.
III. Whenever I drive my car on the highway, it rains.
IV. It is raining

1. If the above statements are all true, which of the following statements must also be true?
A. Bicylces do not travel on the highway.
B. Bicycles travel on the highway only if it is not raining,
C. I fmy car is not pulluting, then it is not raining
D. I am now driving on the highway
E. My car is not a polluter.1

2. The conclusion "my car is polluting" could be logically deduced from statements I and IV if statement
A. II were changed to "Bicycles are polluters"
B. II were changed to "My car is a polluter"
C. III were changed to "If bicycles were polluters, I would be driving my car on the highway"
D. IV were changed to "Rainwater is polluted"
E. IV were changed to "It is not raining" 5

Not an LSAT question, I got this on a timed full test.