I believe it is C. Try and think about where you would naturally pause, you wouldn't say "Tourists in Mexico *pause* enjoy eating the rich, delicious food."
C because it's following a noun
Answer:
To share experiences
Explanation:
In modern times, people usually write travel books and essays to share their experiences.
EXAMPLE FOR YAA:
Did you know that crocodiles tend to have longer, pointed, V-shaped snouts while alligators generally have wider, rounder, U-shaped snouts?
WHILE signals a difference between alligators and crocodiles.