Imo. A
Since the national postal service in country X was privatized six months ago, delays in the delivery of mail have increased by 20 percent. To combat this problem, more sorting and delivering staff must be hired in the busiest regions of the country.
Causality & proposal: Because of privatization of PS (6 months ago), delay in delivery of mail increased.
Author proposes that such delay was due to insufficient sorting & delivering staff in busiest region of the country.
Which of the following, if true, casts the most doubt on the effectiveness of the solution proposed above
What if issue is different from the manpower in the post office (in the busiest region of the conctry) or
if delay in the delivery of mails will not reduced after implementing the proposal or
there are other major causes largely contributing to delay of delivery of mails.
A. The major causes of delays in the nation's busiest regions are bad weather and antiquated sorting equipment. - Other major causes contributing more to delay of delivery of mails. So, even after recruiting more pertinent people, the problem will not be resolved.
B. Since privatization began, the number of employees has increased by 25 percent. - Out of scope
C. Over 60 percent of the postal budget goes to pay salaries. - So What? It doesn't impact the proposal.
D. After a small post sorting facility doubled its staff, the number of delays that were reported decreased by 50 percent. - Strengthens the proposal. So, 180°answer.
E. Since privatization, the average length of delay in the nation's busiest regions has doubled. - Doesn't affect the proposal.