How might one analyze a recursive function to ascertain its impact on algorithmic efficiency?

Question $13$Answer

a$.$

By counting the maximum number of parameters in the recursive calls.

b$.$

By identifying the presence of tail$-$recursion as the sole factor for efficiency.

c$.$

By evaluating the depth of recursion irrespective of its operations.

d$.$

By breaking down the recursive calls and determining the resulting recurrence relation