Per the syllabus, should I score less than 75% on an exam, I am required to do which of the following?

The basketball team won the game.

Walking to school in the rain.

Since the roads were icy and visibility was poor.  

Unless the students carefully read the instructions before beginning the laboratory activity.  

 We ate pizza after the game.

The musician who performed the solo at the concert.    

The hikers reached the summit just before sunset and photographed the valley below

Since the store was closed.

The manager reviewed the proposal, which had been revised three times.