Final answer:
When returning a defective toaster, the consumer is exercising the right to a refund, replacement, or repair, as per consumer protection laws.
Step-by-step explanation:
A man who returns a toaster that shoots sparks when plugged in is exercising the consumer protection right to all of the above: a refund, a replacement, or a repair. This right stems from consumer protection laws that allow consumers to seek redress for products that are defective or unsafe. When a consumer returns a defective product, the supplier has the option to provide a resolution through any of these avenues. The basic rights under consumer protection include ensuring that the product meets the ordinary expectations for use; if it doesn't, such as in the case of a toaster that shoots sparks, the consumer is entitled to one of the remedies mentioned.