Which common bleaching agents include oxalic acid and hydrogen peroxide?

The correct choice identifies common bleaching agents that include oxalic acid and hydrogen peroxide, which are widely recognized in various applications for their bleaching properties.

Oxalic acid is often used to remove rust stains and brighten wood, while hydrogen peroxide serves as a powerful oxidizer and is commonly employed for lightening hair, disinfecting surfaces, and in various cleaning products. Both substances are easily accessible and can be utilized for household bleaching tasks, which reinforces their classification as common bleaches.

When considering the other categories, "minor bleaches" would typically refer to substances that have a limited application or efficacy compared to more potent agents. "Industrial bleaches" usually refer to heavier-duty bleaching agents used in manufacturing and may not include common household substances like oxalic acid and hydrogen peroxide. "Natural bleaches" generally refer to organic or plant-based materials used for bleaching, which does not apply to the synthetic nature of oxalic acid and hydrogen peroxide.

Therefore, understanding the usability and characteristics of these agents aligns perfectly with the designation as common bleaches, making this the most accurate selection.