What is the main idea of the news item？A．Advances in chemical insecticides.B．Genetically-m

What is the main idea of the news item？

A．Advances in chemical insecticides.

B．Genetically-modified fungus kills malaria parasite.

C．A novel and promising approach to mosquito control.

D．New challenges for doctors, scientists, and public health officials.

请帮忙给出正确答案和分析，谢谢！

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