Which of the Following Volumes or Capacities Cannot Be Measured

Multiple Choice

Which of the following volumes or capacities cannot be measured by simple spirometry?
1) Functional residual capacity (FRC)
2) Expiratory reserve volume (ERV)
3) Residual volume (RV)
4) Inspiratory reserve volume (IRV)

A) 1, 3, and 4 only
B) 1, 2, 3, and 4
C) 1 and 3 only
D) 1 and 4 only