When you upload an svg image in an assessmentQ item, it is possible (but very rare) that you get the error "The uploaded image cannot be used in this item".
The svg image that you use contains very specific code that cannot be processed by the library that is being used in the assessmentQ item. This is not something you as an author can fix, and this is not something Televic Education can fix, as we rely on an external library to process this image.
Convert the svg image to another supported image format, like a jpg or png image, and upload that format. This will work perfectly in assessmentQ, and is a good alternative to work around this issue in this specific item.