Which of the following are true about ranking parent issues and sub-tasks? (Choose two.)

Which of the following are true about ranking parent issues and sub-tasks? (Choose two.)
A . Sub-tasks will follow the parent issues’ ranking.
B. Sub-tasks will have a different rank than the parent issues.
C. Users need to rank all of the sub-tasks before ranking the parent issue.
D. Sub-tasks can be ranked in relation to their sibling issues.

Answer: A,D

Explanation:

When users change the parent issues’ rank, all sub-tasks under that parent issues will be moved together.