【单选题】
You need to remove any Microsoft Windows Internet Explorer 7 add-ons in Microsoft Windows Vista computers that do not have prior approval from the following authorities：<br /> Microsoft <br /> System manufacturer <br /> Service provider<br /> What should you do？ （）
A、Remove any add-ons that are not found in the list of downloaded ActiveX controls.
B、Remove any add-ons that are not found in the list of add-ons used by Windows Internet Explorer 7.
C、Remove any add-ons that are not found in the list of add-ons that run without requiring permission.
D、Remove any add-ons that are not found in the list of add-ons that are at present loaded in Windows Internet Explorer 7.
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