If There Are Only Two Airlines That Fly Between Dallas

Multiple Choice

If there are only two airlines that fly between Dallas and New Orleans,what will happen in the market for one airline if the other one goes out of business?

A) The demand curve will shift to the right.
B) The demand curve will shift to the left.
C) There will be a movement to the right along the initial demand curve.
D) There will be a movement to the left along the initial demand curve.