Answer:
I would choose A but i don’t know the context before or after this sentence
Explanation:
Brooded means: Thinking deeply about something that makes someone unhappy
Paragraph:
People nowadays are very particular about the diets they take. Some people consider eating more Genetically Modified Foods (GM) as they provide essential nutrients to the body, The GM foods have also been able to overcome the problem of malnutrition in many counties. As no cases of toxic effect of a GM food on humans have been reported, hence they remain safe for use and are also approved by the FDA.
A short outline for paragraph:
Are GM foods the next generation Foods? Results from studies and experiments have proved that GM foods can be consumed by humans as they show no harmful effects. The FDA has approved many GM foods.
In this sentence detect means to uncover.
