听力原文：West Aft'lean leaders say they are cautiously in favor of using genetically modif

听力原文： West Aft'lean leaders say they are cautiously in favor of using genetically modified crops. But non-governmental organizations are calling for a five-year moratorium so more research can be done. The issue is being discussed at a U. S. -sponsored conference in Burkina Faso.

During the three-day conference, which started Monday, West African leaders said they want assurances that genetically modified products are safe for the people who eat or use them, and for the environment. (7) But the leaders say that in general they believe the genetically modified crops will lead to higher agricultural productivity and therefore should be used.

But non-governmental organizations in West Africa remain unconvinced. A protest by non-governmental organization is planned for Wednesday, when the conference ends.

West African leaders who want assurances believe the genetically modified crops will lead to

A．higher financial earnings.

B．more genetically modified crops.

C．higher agricultural productivity.

D．more genetically modified products.