Which of the following would make a solid thesis for Derek's essay? A.
The ozone layer protects the Earth from the sun's harmful rays, which can cause skin cancer after too much exposure.
B.
Too much exposure to the sun can cause skin cancer according to several leading scientists who have studied this phenomenon.
C.
Because the Earth's ozone layer is shrinking, we should use more public transportation and cut down on the number of cars on the road.
D.
Car pollution is leading to several environmental issues and I think we should never use cars and just use bicycles and horses.