Respuesta :
The correct phrase to fill the blank is: 3. John's not attending.
So, we will have:
16. The manager has no objection to John's not attending the meeting since his daughter is ill.
To make the correct choice, it is vital that the present participle of the verb 'attend' be used.
The noun, John also has to be worded in a manner that shows that the action is performed by him. Thus, option 3 is the best choice.
Learn more about present participles here:
https://brainly.com/question/13637124