Answer:
The correct option is: A. Sinus tachycardia
Step-by-step explanation:
Sinus tachycardia is a medical condition characterized by heartbeat greater than 100 beats/min. In this medical condition, the electrical impulses emerging from the sinoatrial node of the right atrium of heart increases, which leads to elevation of the sinus cardiac rhythm.
Sinus tachycardia is a generally a normal response to physical stress but it can also suggest a health problem.
Therefore, cardiologist will most likely diagnose Sinus tachycardia.