Leave enough room between your vehicle and the one ahead so you can stop safely if the other vehicle stops suddenly. Brake early and gently when you prepare to stop or turn. It gives drivers behind you plenty of warning that you plan to decrease your speed.

For a good "space cushion," use the two-second rule: Select an object near or above the road ahead, like a sign, tree, or overpass. As the vehicle ahead passes it, count slowly, "one thousand one, one thousand two." If you reach the same object before you finish the count, you are following too closely. In bad weather and when following large trucks, increase the count to at least three or four seconds for additional space.

If a driver follows you too closely (tailgates), move to another lane if possible, or reduce speed and pull off the road to let the driver go by. Make sure to signal when you drive off the road and when you return to it.

–“Defensive Driving,”
New York State Department of Motor Vehicles

According to this passage, what rules should be followed to create adequate space between vehicles? Check all that apply.

Brake early and gently.
Signal when leaving or entering the road.
Follow the two-second rule at all times.
If a driver follows too closely, press your brakes to warn the driver.
Move over to allow drivers to pass if they are too close.