Choose the correct preposition for the following.

 She travelled all _____ the world.

Correct option is C

• The phrase "She travelled all over the world" means that she traveled to various places around the world, suggesting a broad and global range of travel.
• The other options don't fit as naturally in this context:
• A) Up: This would imply movement in a vertical direction, which doesn't fit the meaning here.
• B) On: This is usually used for surfaces or specific locations, not for global travel.
• D) In: This would imply being inside a specific location, not traveling around the world.
• So, "all over the world" is the most appropriate phrase.