Judgment on reversible and irreversible processes :(1) reversible thermodynamic process must be a quasi-static process;(2) The quasi-static process must be a reversible process;(3) An irreversible process is one that cannot be carried out in the opposite direction;(4) Any frictional process must be an irreversible process.Of the above four judgments, the correct one is
A．(1)、(2)、(4)．
B．(1)、(4)．
C．(1)、(2)、(3)．
D．(2)、(4)．
