Final answer:
The news headline that suggests an article with the least amount of bias is 'Oil company study shows drilling has little environmental impact'.
Step-by-step explanation:
The news headline that suggests an article with the least amount of bias is: 'Oil company study shows drilling has little environmental impact'. This headline presents information from an industry study, indicating that drilling has minimal impact on the environment. By reporting the findings of this study, the headline presents a specific perspective while avoiding strong language or emotional appeals.
In contrast, the other headlines use language that evokes strong emotions and indicate a particular bias. 'The ten common household items that are actually giving you cancer' and 'You'll be outraged over the conditions we found in this prison' both use sensational language and imply a negative impact. Similarly, 'Genetically modified organisms make up over half of America's diet' presents a potential health concern without providing a balanced view of the topic.