Tennis shoes will adequately protect the feet from hot sparks.

Tennis shoes are not designed to protect against hot sparks, making the statement false. The primary purpose of tennis shoes is to provide comfort and support for athletic activities on specific surfaces, such as tennis courts. However, they typically lack the materials and structural features required to guard against hazards like hot sparks. Effective protective footwear should have heat-resistant materials, reinforced toe caps, and a sole that can withstand high temperatures and abrasion.

The other choices imply varying degrees of potential protection, but they do not accurately reflect the primary function and limitations of tennis shoes when it comes to protecting against extreme heat or sparks. Therefore, the correct conclusion is that tennis shoes do not adequately safeguard the feet in such scenarios.