Which of the following statements is FALSE?

a. Decision trees involve sequences of decisions and random outcomes.

b. In decision theory, returns are dependent on the actions of an indifferent adversary termed "nature".

c. One underlying aspect of decision theory is that, regardless of what we assume about nature, in terms of whether we know probabilities of various states, we are led to the same criterion for selecting a "best decision".

d. One way to deal with decision making in the "uncertainty" context is to treat all states of nature as equally likely as in Laplace Criterion approach.