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Consider the following statements: The injector nozzle of a CI engine is required to inject fuel at a sufficiently high pressure in order to

1. be able to inject fuel in a chamber of high pressure at the end of the compression stroke.

2. Inject fuel at high velocity to facilitate atomization.

3. Ensure that penetration is not high.

Of the above statements

A) 1 and 2 are correct  

B) 1 and 3 are correct

C) 2 and 3 are correct 

D) 1, 2 and 4 are correct