What must be remembered with regard to vehicles with canvass covers?

Your answer is correct because German traffic rules emphasize two important points about vehicles with canvass covers. First, canvass covers must not block the driver's view through the outside mirrors, ensuring safe visibility. Second, trailers that are unloaded but have tall canvass covers are more affected by side winds, which can affect vehicle stability and require careful handling. The third option is incorrect because loads still need to be properly secured, even if there is a canvass cover. Understanding these rules helps ensure safety when driving vehicles with canvass covers.