The correct answer is B. An increase in jobs.
Explanation
According to the excerpt from the first inaugural speech by the President of the United States, Franklin Roosevelt, it can be established that the improvement for which the President would strive is B. An increase in jobs because in the initial part of the excerpt it exposes some problems to the Say that "The withered leaves of the industrial company lie on either side; farmers cannot find markets for their products; the savings of many years on thousands of families are gone." However, he clarifies that there is a more important problem than these when referring to the "large number of unemployed citizens" who face the "problem of existence". So it can be understood that despite problems such as the absence of markets for agricultural products, the bankruptcy of some families and industrial waste, the most important problem is unemployment. So, the correct answer is B.