Sum:=N+Sum(N)

Sum:=N+Sum(N-1)

Sum:=(N-1)+Sum(N+1)

Sum:=(N-1)+Sum(N-1)

Non-recursive call

Recursive function call

Use of more external variable

None of these

Carnot ′s function

Rickmaan function

Both (a) and (b)

Ackermann ′s function

Are initialized during each execution of the function

Are retained from the last execution

Are maintained in a queue

None of these

C provides no input-output features

C provides no file access features

Provides no features to manipulate composite

All of these