During the high middle ages, how did pilgrimages for the crusades affect the economy? a: there was a negative effect on the economy because towns had to pay to build more roads for travel. b: there was a positive effect because those who joined the crusades no longer had to be supported financially. c: they hurt the economy because people moved away from towns and villages and traveled to other places. d: they stimulated the economy by increasing trade and creating a need for additional taverns and inns.