Mechanical Ventilation

What does evidenced-based medicine suggest is the superior mode of mechanical ventilation? (support

your response by addressing "why"
Define (in context of "phase variable") and illustrate the following modes of mechanical ventilation.
A. CPAP (continuous positive airway pressure)
B. Bipap (pressure support ventilation)
C. Volume-target-cmv( continuous mandatory ventilation)
D. Pressure-targeted CMV
E. Volume-target SIMV(Spontaneous Intermittent mandatory ventilation)
F. Pressure-target SIMV