5.) Taking an 8-bit value such as PORTD and ANDing it with the value 0x20 as in: PORTD & 0x20 can result in which possible outcomes/values (select all that apply) a. 0x00 b. Ox20 c. Oxff d. Oxdf 6.) Match the register with the correct description of its use. PORTx (Port Output Register) Grabs (samples) the voltage value currently present on a pin being used as input DDRx (Data Direction Register) Determines the value of a pin as output OR enables the internal pull-up resistor on a pin used as input PINX (Port Input Register) Determines whether a pin is used as input or output 7.) Poor Billy Bruin connected pushbuttons to port B1 and BO of his Arduino. He wants to turn on an LED on port D7 if someone pushes both buttons at the same time (assume he uses buttons that output 1 when pressed). He writes the code below but when he runs it, it does NOT work. What is a likely problem? DDRD = (1