Sentence 1: Randy's teacher told him that he needed to ace tomorrow's final. 
 Sentence 3: He felt confident when he took the exam 
 Sentence 4:  Although he earned an 89%, he had a D in the class 
 Sentence 5:  The teacher wasn't willing to curve his grade 
 Option 1: He decided to skip the exam. 
 Option 2: Therefore, Randy studied for the entire week during the test.