What might be the ultimate result of a biased bitter criticism

A．pretentious rather than honest
B．arrogant rather than modest
C．cruel rather than merciful
D．destructive rather than constructive

A．explain that staging a play requires complex teamwork
B．argue that a minute mistake may ruin a lifelong task
C．show that the preparatory stage is imperative t the following ones
D．illustrate that criticism may block the way to success