Which of the following could be the ratio of the length of the longer leg of a 30-60-90 triangle to the length of its hypotenuse? Check all that apply.
A. 2: 3 sqrt 3
B. sqrt 2: sqrt 3
C. sqrt 3: 2
D: 1: sqrt 2
E: 3: 1 sqrt 2
F: 2: 2 sqrt 2