1)-----------.The rise of adventure and extreme sports like BASE jumping,snowboarding,ice climbing,and paragliding is the most vivid indication of this national behavior.With death in the back of their minds,practitioners of such risky activities are daily booming in number.

A)Americans have always shunned high-risk behavior and will probably remain the same.
B)A fearless climber survived through some of the roughest terrain in the world last month.
C)Americans are too sensible to do such foolhardy things as jumping off dizzying cliffs
D)Heading into the third millennium,America has embarked on a national orgy of thrill seeking and risk taking.
E)Risk taking is most clearly on the rise in speculating in the Internet stocks