Which statement about quercetin-rich foods and cognitive function is supported by the material?

• A. They have no effect on memory or reflexes.
• B. They greatly improve the rate of information recall in the brain and speed of reflexes.
• C. They only improve reflex speed but not memory.
• D. They worsen memory recall.

Answer: (B)

Quercetin-rich foods can influence cognitive function through antioxidant and anti-inflammatory effects that support neuronal health and signaling. The material describes associations with improved cognitive performance, including faster information recall and quicker reflex responses, which reflect better memory retrieval and processing speed. This aligns with how flavonoids like quercetin may modulate brain signaling and reduce oxidative stress in memory-related regions. Therefore, the statement that quercetin-rich foods greatly improve the rate of information recall in the brain and speed of reflexes fits the evidence. The other options contradict the described associations by suggesting no effect, limited effects, or negative effects.