Correct Option: B

embark (Verb) : to get onto a ship
alight (Verb) : to get out of a bus, a train or other vehicle
disembark (V.) : to leave a vehicle, especially a ship/an aircraft, at the end of a journey
embalm (V.) : to prevent and preserve a dead body from decaying by treating it with special substances
align (V.) : to arrange something in the correct position, or to be in the correct position, in relation to something else, especially in a straight line