The nurse in the emergency department is a

问题：

The nurse in the emergency department is assessing a 64-year-old client experiencing substernal chest pain. The client’s electrocardiogram shows evidence of myocardial ischemia. Which statement should indicate to the nurse that the client may be a candidate for thrombolytic therapy（）

A. "I have had chest pain for 2 days. "

B. "My chest pain started 3 hours ago. "

C. "My chest pain stops when I take a nitroglycerin pill. "

D. "I have had chest pain on and off all week. "