On the differences between operational semantics and denotational semantics, which of the following statements are true? Select all that apply. In operational semantic, states are machine states. In denotational semantics, states are program states (pairs of variables and values). In denotational semantics, state changes are defined by coded algorithms written in some intermediate language; whereas in operational semantics, state changes are defined by mathematical functions. o In denotational semantic, states are machine states. In operational semantics, states are program states (pairs of variables and values). In operational semantics, state changes are defined by coded algorithms written in some intermediate language: whereas in denotational semantics, state changes are defined by mathematical functions