How is the integer $255$ presented in memory?

$000$

$0000000000000$

$100$

$0000$

$00000111$

$0001$

$0000000000000$

$000($

$100000001111$

c$)000($

$0000000000000$

$0000$

$100001111111$

d$)0000000000000000$

$0000$

$000$O $11111111$