Given the input '5 10 15 20', what is the output after rearranging by placing the second number at the start?

A. 10 5 15 20

If the input is 'dog cat mouse', and the rearrangement step is to sort them by length, what is the output?

A. CAT DOG MOUSE

For the input '1 3 2', what is the output after sorting numerically?

A. 1 2 3

If the input is '5 3 8 1', what is the output after sorting in descending order?

A. 8 5 3 1

If the input is 'dog cat mouse', what will be the output after the rearrangement steps are applied?

A. CAT MOUSE DOG