A. Independent because it flies to need anything else to have the sentence make sense
I think it was Alexander Graham Bell
One problem is by trading by sea, ships are bring invaise sea creatures to other countries and can harm the wild life for other marine ecosystems and for tons of people.
Life: everyone is entitled to live.
Liberty: everyone is entitled to do anything they want to so long as it doesn't conflict with the first right.
Estate: everyone is entitled to own all they create or gain through gift or trade so long as it doesn't conflict with the first two rights.