question: page setup:page margins:text direction
choices.label: A B C D
choices.text: insert image:formula:page number font settings:song:boldface email sending:attachment:body save documents:hard disk:phone
explanation: "page margins" and "text direction" belong to the contents of "page setup", of which "page margins" and "text direction" are part of page. "formula" and "page number" belong to the content of "insert", not the content of "insert picture". "song" and "boldface" belong to "font settings", but "song" and "boldface" belong to "font". "attachment" and "body" belong to the content of "email sending", where "attachment" and "body" are the components of "email". "hard disk" and "mobile phone" are tools for "saving documents".
relation: page margins text direction page setup R3.10
relation: page margins text direction page setup R2.3
relation: song boldface font settings R3.10
relation: attachment body email sending R3.10
relation: save documents hard disk phone R3.8