Final answer:
The result of the code would be an error message because the string is not enclosed in quotation marks.
Step-by-step explanation:
The result of the following line of code: print(Hello World!) would be an error message since there are no quotations around the string. In Python, when printing a string, it must be enclosed in either single or double quotation marks. The correct syntax would be print('Hello World!') or print("Hello World!").