Answer

B

Explanation

A detergent is a cleaning agent that is used to remove dirt, grease, and stains from surfaces. The primary function of a detergent is to break down and remove food residue from surfaces, making it easier to clean. While detergents can have various properties, such as antibacterial agents that can kill bacteria (Option A), their primary function is to aid in the removal of dirt and grease. Option C, stripping heavy grease, is a more specialized function of certain heavy-duty detergents, but it is not the primary function of all detergents. Option D, eliminating the need for scrubbing, is not accurate as detergents often require some level of agitation or scrubbing to effectively remove dirt and stains. Therefore, the most accurate answer is Option B, which states that a detergent must be able to remove food residue.