const int MyPin $=2$;

vold setupp &

pinMode$(3,$ INPUT$)$:

This code would not cause a compilation error because $-$ Write true or false.

The circuit above has $$ tri$-$state bufferis. Write the number of the tri$-$state buffers.

Assume that the pln is connected to $5$ volts through a switch.

Which of the following signals must be $1$ to read this signal? $$ Write WDx$,$ WRx$,$ RPX$,$ or ckvo.