Answer:
Option D
Explanation:
Board of directors (BoD) are the people who make strategic decisions. As Arielle is given an opportunity to serve BoD, then she is supposed to make strategic decisions and set the goals. She also needs to approve major decisions along with other BOD members.
In Option A, she might not be given any leading HR role.
Option B and C talks about middle/lower managers roles thus they are wrong.