1. Suppose that `pwd` prints `/users/backup`. Which of the following commands will navigate you to `/users/thing/backup/`?

a) ../../users/thing/backup
b) cd ././users/thing/backup
c) cd ../users/thing/backup
d) cd ../../users/thing/backup

1. Suppose that `pwd` prints `users`. Rearrange the following words and symbols to create a valid unix command for listing all of the files in the `pnas_final` folder.

pnas_final, backup, /, -a, ls, /