Answer:
B. Josh would invite Coach Wilkins' parents, but a delay at the airport might
mean they don't arrive in time for the banquet
Explanation:
The suspense in writing usually refers to a state of uncertainty of an event. Most often it uses time restraint or a dilemma which keeps the reader anxious about its resolution, making the story more interesting.
In this particular case, the most effective revision for adding an element of suspense would be the uncertainty of Coach Willkins's parents arrival.
Their presence would mean a lot to the coach and it would make the banquet more special, so the expectation of their arrival really engances the tension of the story.