These questions are about assembler language coding(Multiple choice)

You could present your answer with A B C D.

Question 1 1 pts Briefly describe what the following Hack assembler code does @KBD D-M; @48 1A @num M-D END) OEND 0;JMP It reads the keyboard code at the time of the first D-M command and subtracts 48 from it and puts the result in "num It reads the keboard register at the time of the @kbd command and exits if the scan code is more than 48. Nothing, there is a syntax error and the code doesn't assemble. Nothing, there is no way that this code is able to read the keyboard unless the user is able to press the number O O 48 which doesn't exist on the keyboard. If it could work it would put the value -48 in "num