i$)$ At which address does the execution start? Why?

ii$)$ What value is stored in register $LR$ after executing the instruction $"$BL sum"?

iii$)$ Assuming that the initial value stored in sp is $0x00000000$ FEFFFFB$0,$ What is the value of register $sp($X$28)$ after executing the instruction MOV x$2,$ #$5$ and ADD x$19,$ x$1,x2?$

iv$)$ Explain what the program is doing. Provide the $C$ translation of the above assembly program.