It is obvious that nobody likes ______ at in public.

A．The spaceship travels to its destination with its own fuel.
B．The booster separates and drops when all the fuel it carries has used up.
C．The multi-stage rocket is powerful enough to send the spaceship to its destination.
D．The spaceship gets out of the Earth’s gravitation force and flies to its destination on its own.

A．catching
B．being caught
C．be caught
D．having being caught