Sentence 1: Hillary had poor grades in her math class. 
 Sentence 3: She promised Hillary a trip if she got her grades up 
 Sentence 4:  Hillary worked hard and got her grade up to a B 
 Sentence 5:  Her mother planned a trip to a local amusement park 
 Option 1: Her mother told her she needed to improve her grades. 
 Option 2: Her father told her she needed to improve her grades.