A participle has the following form: verb + -ing, and the only word in this sentence that takes that form is A, 'flying', which is the correct answer.
B.
How could you find something if you don't know what you're looking for?
Answer:
sdfdghbjnm,lkjhgfdftyuijjhgf
Explanation:
dsfghjkl;lkjhgfdsdfghjkl./lkjv