A . CDhttps://assets.asklib.com/images/image2/2017041911495648818.gif
B . CDhttps://assets.asklib.com/images/image2/201704191150034415.gif
C . CDhttps://assets.asklib.com/images/image2/2017041911494073131.gif
D . CDhttps://assets.asklib.com/images/image2/201704191151266445.gif
E . TdT