Lookatthebook,It'snotmine,andit'snotyours,soitmustbe______. A: someboby'selse B: somebobyelse C: somebobyelse's

Lookatthebook,it'snotmine,andit'snotyours,soitmustbe________. A: somebodyelse's B: somebodyelse' C: somebody'selse D: somebody'else