Which of the following shows rather than tells?

-She walked away happy.

- She skipped off, singing.

-She skipped off, happy.

-She walked off, happy.

She skipped off, singing.

Explanation:

The second option shows rather than tells, because it has more emotive words and it also creates a sensorial experience with the use of the word "singing" it makes the reader imagine the person repeating a tune, and this also makes the mood merrier, then the action of skipping off instead of walking also evokes the figure of a happy child.

I would say the second option - "She skipped off, singing"

It gives a visual of her being very happy, instead of just saying she was happy.