C. She doesn't always do her hobby with other people.

• Lucy mentions that she does geocaching with her uncle, friends, or by herself if her uncle is busy.

A. They can be hard for her because she's young.

• Lucy notes that some puzzles are difficult because they involve movies and TV shows she hasn't seen, which might be due to her age.

C. write down who you are in the little box

• Lucy describes putting her name in the little box inside the cache.

B. get other people interested in geocaching

• Lucy plans to tell her friends and family about geocaching, indicating she wants to get others interested.

C. It's a good hobby for people of all ages.

• Lucy highlights that geocaching is a great activity for everyone, from adults to little kids