Analyze the following Python code. What is the most likely outcome when it is executed?

def find_mean(data):
  # Note: This function does not handle all possible inputs
  total = sum(data)
  count = len(data)
  return total / count

test_data = []
print(find_mean(test_data))

Python Function for List Average

Consider the two Python functions below, both intended to find the average of a list of numbers. Evaluate the primary difference in their design and robustness.

Function A:

def calculate_average_a(numbers):
    if not numbers:
        return 0
    return sum(numbers) / len(numbers)

Function B:

def calculate_average_b(numbers):
    return sum(numbers) / len(numbers)

Which statement best evaluates the two functions?