Final answer:
A travelogue is best defined as a written account detailing the personal experiences and opinions of an author while traveling. It is a type of creative nonfiction akin to personal narratives or memoirs, but with a focus on the travel experience.
Step-by-step explanation:
The statement that best defines a travelogue is a) "A written account of one's personal experiences and opinions while traveling." A travelogue is a form of creative nonfiction where the author documents and narrates their experiences from traveling. It typically includes personal perspectives, anecdotes, and can be rich in descriptions of places, cultures, and people encountered during the journey.
This differentiates it from just a collection of tickets (option b), a guidebook with objective travel information (option c), or an economic report on tourism (option d). Narratives within a travelogue often reflect the personal nature of a personal narrative or memoir, although travelogues focus more on the places and experiences rather than the deep personal history.