How can a category be moved to display in the category widget from the bottom to the very top?

How can a category be moved to display in the category widget from the bottom to the very top?
A . Set its sequence value higher than any other category.
B. set its sequence value lower than any other category.
C. Set its parent category to the "First Category" category section.
D. Set its sequence value higher than any other category.

Answer: B