practical and economic economic and ecological ecological and ethical ethical and practical
I gave my students this multiple choice question: Golden rice is a transgenic plant that produces rice with high levels of vitamin A. The rice would help people improve the nutrition in their diets. However, some people are concerned about the effects the transgenic rice might have on native plants. Which words best characterize these concerns?

Only one answer is correct among these 4 choices:
- practical and economic
- economic and ecological
- ecological and ethical
- ethical and practical

Could you tell me which one is correct?

ecological and ethical