Which of the following are essential for a good combustion chamber of turbojet engine?1. It should allow complete combustion of fuel.2. It should maintain sufficiently high temperature in the zone of combustion in addition to proper atomization of fuel thus leading to continuous combustion.3. It should not have high rate of combustion.4. The pressure drop should be as small as possible

• A. 1, 2 and 4 only
• B. 1, 2 and 3 only
• C. 1, 3 and 4 only
• D. 2, 3 and 4 only