單項(xiàng)選擇題

您正在開(kāi)發(fā)一種調(diào)用COM組件的方法。您需要使用聲明性安全來(lái)顯式請(qǐng)求運(yùn)行庫(kù)執(zhí)行完整的堆棧遍歷。您必須確保調(diào)用方執(zhí)行您的方法前所有調(diào)用方擁有所需的COM interop的信任級(jí)別.為此應(yīng)該放置哪一個(gè)方法的屬性?()

A. [SecurityPermission(SecurityAction.Demand,Flags=SecurityPermissionFlag.UnmanagedCode)]
B. [SecurityPermission(SecurityAction.LinkDemand,Flags=SecurityPermissionFlag.UnmanagedCode)]
C. [SecurityPermission(SecurityAction.Assert,Flags = SecurityPermissionFlag.UnmanagedCode)]
D. [SecurityPermission(SecurityAction.Deny,Flags = SecurityPermissionFlag.UnmanagedCode)]

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