Partial Ventilatory Support Can Be Provided by Which of the Following

Multiple Choice

Partial ventilatory support can be provided by which of the following ventilator modes?
1) Pressure Controlled Continuous Mandatory Ventilation (PC-CMV) set rate 8 breaths/minute
2) Volume Controlled Synchronized Intermittent Mandatory Ventilation (VC-SIMV) set rate 4 breaths/minute
3) Pressure Controlled Synchronized Intermittent Mandatory Ventilation (PC-SIMV) set rate 10 breaths/minute
4) VC- MMV set V_e8 L/minute

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