Given the fact "as distance from a source of light increases , that source of light will appear dimmer", what is the answer to the question or completion "The further a ship sails away from a light house"

Options are:
(1). the less they will be guided by it's beam.
(2). the more they will be guided by it's beam.
(3). the more likely the ship is to sail successfully.
(4). rough ocean waters will decrease.
(1).