The Main Point of the Ecclesiastes Is That

The main point of the Ecclesiastes is that

A) our efforts are ultimately futile, so we should eat, drink, and enjoy what God gives us.
B) our efforts ultimately futile, so we should embrace nihilism.
C) our efforts are ultimately meaningful, so we should seek to impress God.
D) our efforts are ultimately meaningful, so we should work hard to amass large fortunes.