Which of the following statements is/are/ correct:
A. Entropy increases with the number of energetically equivalent ways to arrange the components of a system.
B. A given set of conditions such as P, V, T defines a microstate of a system.
C. The change represented below has a positive ΔS.
a) A and B only
b) A only
c) A and C only
d) A, B, and C