It has been noted ironically that although the atlantic ocean is east of the pacific ocean a ship passing from the atlantic to the pacific travels from west to east through the panama canal why

This curiosity of traveling from west to east from the Atlantic Ocean to the Pacific Ocean through the Panama Canal, even though geographically their places are reversed, appears because of the location of Panama, and also because of the position of the canal. The Panama canal takes a diagonal track, which stretches in a northwest-southeast manner, thus is not cutting through the land in a direct linear way from east to west, but kind of reversed, and that is because it was the easiest and best option for the building of the canal according to the local relief.

the answer is b. apsidal precession

i am sure that it is true i got this qu before.