Im pretty sure that the right answer is
B. Firefighting is definitely a dangerous job
hope this helps
The indirect object usually expressed the beneficiary of an action: for whom or for whose sake was the task performed. Here it's "her" - she is getting the flowers. The flowers are the direct object.
An author's purpose is the reason that he or she is writing a piece; whether it's narrative, persuasive, expository, or informative.