Calculating amortized complexity is different from average-case analysis because: (select all that apply)

A) amortized complexity involves averaging over a sequence of operations not averaging over a sample space of inputs.

B) we only determine an amortized complexity for a sequence not for a single operation.

C) the probability distribution for amortized complexity is over a sample space of possible sequences not over a sample space of inputs.

D) there is no probability involved in amortized complexity analysis.