Members of the federal reserve expressed concerns about future inflation at their may meeting, leading them to vote unanimously for a policy directive leaning toward an increase in interest rates, according to minutes of the meeting released thursday. while the [federal open market committee] members agreed that recent improvements in the nation’s productivity allowed more room for noninflationary economic growth, they worried that growth, which came in at a 4.3 percent annual rate in the first quarter, was still too rapid to keep inflation under control. source: “fed worried about future inflation,” the washington post, july 1, 1999. according to the passage, what factor in the economy was to hold prices down as the economy grew? a. productivity improvements c. federal reserve policy decisions b. high interest rates d. low interest rates