If the Amplitude of the QRS Complex Is So Great $\frac{1}{2}$

Multiple Choice

If the amplitude of the QRS complex is so great that it causes the stylus to move off the paper,the machine should be set at:

A) $\frac{1}{2}$ STD.
B) 1 STD.
C) 2 STD.
D) 50 mm per second.