Answer:
Option C .
Explanation:
Here it is given that there are two species of birds which fly at different rates.
- Species A can fly 18.9 miles in 42min .
- Species B can fly 20.3miles in 59min .
We can use the formula here ,

For Species A :-
Substitute the respective values in stated formula ,

Simplify ,

For species B :-
Substitute the respective values in stated formula,


Therefore from above calculations we can say that ,

Species B is slower and it can fly 0.35miles/minute .