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A construction team gives an estimate of three months to repave a large stretch of a very busy road. The government responds that it's too much inconvenience to have this busy road obstructed for three months, so the job must be completed in one month. How does this deadline change the number of workers needed?
a. One-ninth as many workers are needed.
b. One-third as many workers are needed.
c. The same number of workers are needed.
d. Three times as many workers are needed.
e. Nine times as many workers are needed.