Correct Answer: A well done introduction grabs the reader.

Solution : The correct choice is the first option.

The reasons why other options aren't correct are as follows:

Option 2 . "A wel done introduction grabs the reader."

• Error : Wel should be well.

Option 3 . "A well done introduction grabbs the reader."

• Errors : Grabbs should be grabs.

Option 4 : "A well done intrudoction grabs the reader."

• Error : Intrudoction should be introduction.

Therefore, the correct sentence is: " A well-done introduction grabs the reader. "