Which of the following sentences  most  clearly uses problem-solution organization?   a. the collapse of the housing market was by far the biggest factor in the recent recession.  b. do you have problems with mosquitoes and gnats? fabulous exterminators can !   c. splitting the roman empire into two parts the eastern territories live on.  d. we've gathered at this conference to discuss three things: poverty, war, and disease.

B. Do you have problems with mosquitoes and gnats? Fabulous Exterminators can help!

Explanation:

This is the sentence that most clearly uses the problem-solution organization. In a problem-solution organization, the author introduces a problem or complication that requires a solution. Afterwards, he proceeds to explain what the solution is. This is a very effective structure as it links two ideas in a clear and practical way. In this example, the problem that we find is mosquitoes and gnats. The solution that the author suggests is that of hiring "Fabulous Exterminators."

answer-the island had airfields that the u.s. military needed.

a. all people should come together to heal the nation.