input: Write a function to create a dictionary containing student names and their corresponding marks. The function should take a list of tuples as input, where each tuple contains a student's name and their mark. The function should return the dictionary.
  assert construct_student_marks([("John", 90), ("Levi", 85), ("Jill", 95), ("Sara", 75)])=={ "John" : 90, "Levi" : 85, "Jill" : 95, "Sara" : 75 }
  assert construct_student_marks([])=={}
output: def construct_student_marks(student_tuples):
      return {name: mark for name, mark in student_tuples}