Which of the following mail articles are not subject to examination or inspection by Customs?

QUESTION PRESENTED FOR REVIEW ; Which of the following mail articles are not subject to examination or inspection by Customs? A. Bonarfide gifts with an aggregate fair retail value not exceeding . $800 in the country of shipment B. Mail packages addressed to officials of the U.S. Government containing merchandise ; C. Diplomatic pouches bearing the official seal of France and certified as only containing documents D. Personal and household effects of military and civilian personnel returning to the United States upon the completion of extended duty abroad E. Plant material imported by mail for purposes of immediate exportation by mail c i LIST OF ALL PARTIES PETITIONER: ; BYUNGMIN CHAE EXAMINEE FOR THE CUSTOMS BROKER LICENSE IN THE MONTH OF APRIL 2018 RESPONDENT: JANET YELLEN, THE UNITED STATES SECRETARY OF THE TREASURY ALEJANDRO MAYORKAS, THE UNITED STATES SECRETARY OF THE HOMELAND SECURITY THE UNITED STATES DEPARTMENT OF THE TREASURY THE UNITED STATES DEPARTMENT OF THE HOMELAND SECURITY, AND THE UNITED STATES LIST OF