Jason and Katrina Work on the Loading Dock for Longhaul

Jason and Katrina work on the loading dock for Longhaul Transport Company.Jason has a disability.Katrina has seniority.Jason asks for a transfer,which would represent an accommodation for his disability.Longhaul gives the transfer to Katrina on the basis of her seniority.Jason files a suit against Longhaul for discrimination on the basis of his disability.The court is most likely to rule that

A) Katrina's seniority is a good defense.
B) Jason's disability is a sufficient basis for relief.
C) Longhaul's action was a business necessity.
D) Longhaul's action was a reasonable accommodation.