Q60Single correct3 Marks20 Nov 2022

Consider the following pseudocode, where `D` is a dictionary. Choose a statement regarding `D` such that `sum` will always store a value greater than 0 at the end of execution. ``` sum = 0 foreach key in keys(D) { sum = sum + first(D[key]) } ```

A

Each key of dictionary `D` should be mapped to a positive integer.

B

Each key of dictionary `D` should be mapped to a dictionary with each key mapped to a positive integer.

C

Each key of dictionary `D` should be mapped to a non-empty list of integers.

D

Each key of dictionary `D` should be mapped to a non-empty list of positive integers.