​In Terms of Water Supply Over the Last Twenty Years

​In terms of water supply over the last twenty years in Texas,_____.

A) ​there have been severe and repeated droughts
B) ​there has been severe and repeated flooding
C) ​during any given year, it has been almost possible to predict with confidence that there would be too
Much or not enough water in Texas
D) ​all of these
E) ​none of these