A heron is perched in a tree 50 feet above sea level. Directly below the heron, a pelican is flying 17 feet above sea level. Directly below the birds is a trout, swimming 23 feet below sea level. Select all the true statements.

A The difference in height between the pelican and the heron is -33 feet. The difference in height between the pelican and the heron is -33 feet.

B The difference in height between the pelican and the heron is 33 feet. The difference in height between the pelican and the heron is 33 feet.

C The distance between the heights of the pelican and heron is -33 feet. The distance between the heights of the pelican and heron is -33 feet.

D The difference in height between the pelican and the trout is -40 feet. The difference in height between the pelican and the trout is -40 feet.

E The difference in height between the pelican and the trout is 40 feet. The difference in height between the pelican and the trout is 40 feet.

F The distance between the heights of the pelican and the trout is 40 feet.