 
<translate> E nwere ike iziga mmadụ akwụkwọ ego n'ụlọ akụ̀. Akwụkwọ ozi bụ usoro kwesịrị ekwesị e ji ezipụ ihe. Ya mere, azịza ya bụ ozi. <eng> A bank statement might arrive by mail at someone's house. Mail is a proper process by which things are delivered.
So, the answer is mail. 