I think D is as possible as A.
suppose in 1910 we had days with 1 inch rainfalls
suppose in 1990 we had days with 1.99999 inch rainfalls
it can, just as in A, be true that the amount of rainfall in 1990 for moderate rainfall was greater than in 1910...
suppose in 1910 we had days with 1 inch rainfalls
suppose in 1990 we had days with 1.99999 inch rainfalls
it can, just as in A, be true that the amount of rainfall in 1990 for moderate rainfall was greater than in 1910...






