The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.
If he had not dropped out, / he will most certainly have completed / his education by 2023.
1
his education by 2023
2
No error
3
If he had not dropped out
4
he will most certainly have completed