BOTH INTERNATIONAL & INLAND. In which situation would you consider a risk of collision to exist?

A
A vessel is one point on your starboard bow, range increasing, bearing changing slightly to the right.
B
A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right.
C
A vessel is two points abaft your port beam, range decreasing, bearing constant.
D
A vessel is on your starboard quarter, range increasing, bearing is constant.
E