'Holism' and 'Systems Thinking' Are Useful Because

'Holism' and 'systems thinking' are useful because:

A) human systems are like machines.
B) these perspectives highlight the most important aspect of human experience, which is culture.
C) these perspectives highlight the most important aspect of human experience, which is biology.
D) to explain a thing means nothing less than placing it into context.
E) everything makes more sense when viewed out of context.