To determine the order of the trails from shortest to longest, we need to convert the trail lengths into a standard format.
- Trail A: 5.910 miles
- Trail B: 5.17 miles
- Trail C: 5.59 miles
Now let's compare the decimals of the trails, focusing on their lengths:
- Trail B: 5.17 miles
- Trail C: 5.59 miles
- Trail A: 5.910 miles
Now, we can order them from shortest to longest:
- Trail B: 5.17 miles
- Trail C: 5.59 miles
- Trail A: 5.910 miles
Thus, the correct order from shortest to longest is B, C, A.
So the answer is B, C, A.