86. A Turing machine is a mathematical model of computation that defines an abstractmachine. Which of the following statement is wrong about the Turing machine？
(A)Turing machine uses random-access memory.
(B)In the Turing machine model, it assumes that there is unlimited memory.
(C)Even there are more than one tapes in the Turing machine, it still has the same abilitywith the original version.
(D)In the Turing machine, there is a head that can read and write symbols on the tapeand move the tape left and right one cell at a time.