Straight Arrow unloaded two tankers worth of toxic waste at an important port in the country of Urithmea. A hundred workers worked two days in their shorts and sandals to unload the barrels from the tankers for $5 a day. They were not told about the content of the barrels. Some observers felt that it was the obligation of not just the government of Urithmea but also of Straight Arrow to ensure that no harm was done to the workers. These observers are most likely:
1- Utilitarianists
2- Cultural relativists
3- Justice theorists
4- Rights theorists
5- Naïve immoralists

4. Rights theorists

Explanation:

Rights theorists -

According to this theory , it is the legal and moral right of an individual person , hence , any activity against these rights are unexceptable , is referred to as rights theorists .

The people have some basics rights , which can be claimed at any moment of work , and is need to be fulfilled by the company or government .

Hence , from the given scenario of the question ,

The correct option is 4. Rights theorists .

answer; /// i believe the correct answer is (all of the above);

b. take periodic breaks and alternate between tasks.  

will increase work efficiency, and avoid health issues.