Available choices:
[A]. No;
[B]. Yes;
Given those answer options, answer the question: I am verifying the answers generated by an automatic system to the following question: how a rocket engine works Suggested answer: Rocket engines as a group have the highest exhaust velocities, are by far the lightest, but are the least propellant efficient of all types of jet engines. Should I validate this answer?
A:
[A].