Final answer:
The ShowPrimes function generates and displays prime numbers, while the IsPrime function evaluates if a number is prime or not.
Step-by-step explanation:
ShowPrimes is a function that generates and displays n prime numbers. It takes a parameter 'n', which specifies the number of primes to be displayed.
The IsPrime function, on the other hand, evaluates whether a given number is prime or not. It takes a parameter 'num' and returns a boolean value, true if the number is prime and false otherwise.
Therefore, the correct answer is d) Both a and b.