Sayuri's asian café needs to make potstickers faster, so sayuri buys a new machine to speed production, and the team starts using it on day 4. sayuri tracks production over the course of seven days. which of these statements summarizes how the machine affects productivity?
a. it initially slows production, but then production improves greatly.
b. it initially slows production, but then production returns to its normal rate.
c. it initially speeds up production, but then production returns to its normal rate.
d. it initially speeds up production, but then production slows down again.