In PIC, the port pins that have internal pull up resistors are typically used as Select one:a. outputb. None of thesec. inputs as it helps to ensure the known state when no other circuit is connectedd. Both input as well as output

The correct answer is c. inputs as it helps to ensure the known state when no other circuit is connected.

In PIC microcontrollers, the port pins that have internal pull-up resistors are typically used as inputs. This is because the pull-up resistors help to ensure a known state (usually high, or '1') when no other circuit is connected. This prevents the input from floating, which could cause unpredictable results in the program.