Consider the $8051$ assembly code.

org $000h$

mov r$1,45$h

mov r$2,$ #$40$h

mov rQ$,$Och

L$1$: mov a$,$ar$1$

mov ar$2,$a

inc $r1$

inc $r_2$

$djnz$ rO$,$L$1$

end

The program transfers $10$ bytes of data from location $40$ h to $45$ h

The program transfers $12$ bytes of data from lacation $45h$ to $40h$

The program iransfers $10$ bytes of dala from location $45h$ to $40h$

The program transfers $5$ bytes of data from location $40$ to $45$ h