It is often said that home is _______ the heart is and now part of my heart is with my new classmates.

A．what

B．how

C．where

D．when

《新保密法》规定，一切国家机关、武装力量、政党、社会团体、企业事业单位和公民都有保守（）的义务

A、国家秘密

B、党和国家秘密

C、商业秘密、工作秘密