How Does 'Ecological Selection' Differ from 'Sexual Selection

How does 'ecological selection' differ from 'sexual selection'?

A) Ecological selection is another name for natural selection, and sexual selection is synonymous with artificial selection.
B) While both are forms of natural selection, the trigger for ecological selection is external to the organism (environmental) , while the trigger for sexual selection is internal to the organism (mate preference) .
C) Ecological selection is an evolutionary process, while sexual selection is simply a reproductive strategy.
D) Ecological selection is an example of biological determinism, while sexual selection is an example of cultural determinism.
E) The two labels actually apply to the same phenomenon.