Under what condition can a colored pesticide be distributed or sold?

A colored pesticide can be distributed or sold only if it has the prescribed color, which is a requirement set forth by regulatory agencies to ensure safety and compliance. The rationale behind this regulation is to maintain consistency and prevent confusion among users and handlers of pesticides. Specific colors can help signify the pesticide's nature or its intended use, making identification easier and minimizing the risk of misuse.

For instance, certain colors might be associated with specific safety warnings or formulations, helping users to quickly understand the product's application and hazard information. This safety measure is crucial, especially in environments where multiple pesticide products may be present, as it reduces the potential for accidents that could arise from misidentification.

The other options suggesting unapproved colors, irrelevance of colors, or any color choice by the seller fail to meet the requirements set by pesticide laws. These alternatives overlook the importance of maintaining a standardized coloring system that enhances safety and compliance within the industry.