input: Write a python function to sort a list of student names alphabetically.
  assert sort_alphabetically(['John', 'Alice', 'Bob', 'Charlie']) == ['Alice', 'Bob', 'Charlie', 'John']
  assert sort_alphabetically(['Dave', 'Eve', 'Carol', 'Alice']) == ['Alice', 'Carol', 'Dave', 'Eve']
  assert sort_alphabetically(['Zara', 'Mia', 'Anna', 'Olivia']) == ['Anna', 'Mia', 'Olivia', 'Zara']
output: def sort_alphabetically(names):
      return sorted(names)