Answer:
D
Step-by-step explanation:
A,B,and C can not solve. because they have wrong answers.
1/2 is equivalent to 50%
3/4 is equivalent to 75%
75% > 50% (75% is larger than 50%)
75% = 3/4
The answer is 3/4
Hope the answer helps :)

Solution ~
or it can also be expressed as ~
The distance around the crater is the circumference.
The formula for circumference is pi x diameter.
C= pi x d
C= 3.14 x 3000
C= 9420 feet
Rounding the answer is 100.