Sentence 1: Mason had been diagnosed with leukemia. 
 Sentence 3: His doctor suggested a risky new drug trial 
 Sentence 4:  Mason decided it couldn't hurt and signed up 
 Sentence 5:  To his delight the drugs worked and he felt healthier soon 
 Option 1: He was so relieved when he found out it was a misdiagnosis. 
 Option 2: He was really afraid that he might die soon.