Given the struct definition for lnode shown below, and the memory containing one instance of lnode$,$ answer the question below

$.$Struct:

struct lnode $\{$

char $*$str;

char first;

int size;

struct lnode $*$next; $\}$;

Memory:

$0$x$555555756$b$80$: $0$x$0000555555756$ba$00$x$0000000900000074$

$0$x$555555756$b$90$: $0$x$0000555555756$b$400$x$0000000000000021$

$0$x$555555756$ba$0$: $0$x$74617265706$d$65740$x$0000000000000065$

$0$x$555555756$bb$0$: $0$x$00000000000000000$x$0000000000000021$

What is the address where the variable size is stored? Give your answer either in hexadecimal or binary, accounting for all $64$ bits.