Which of the following statements about risk-sensitivity is true?

A) Humans are usually risk-prone but never risk-averse or risk-sensitive.
B) Humans are usually risk-averse but always risk-prone and risk-sensitive.
C) Humans are never risk-sensitive but always risk-averse and risk-prone.
D) Humans are usually risk-sensitive, but not always consistently risk-prone or risk-averse.
E) Humans are never risk-averse, but always consistently risk-prone and risk-sensitive.