What is the effect of propellant tank pressurization on engine performance?

• A. To ensure a steady flow of propellant to the engine under varying external pressure and to prevent cavitation or boil-off.
• B. To maintain the tank structurally rigid without affecting propellant flow.
• C. To measure propellant volume only.
• D. To vent propellant to atmosphere during operation.

Answer: (A)