Answer:
D
Explanation:
here is the full question :
A recent medical study reports new benefits of cycling. Simultaneously, the price of the parts needed to make bikes falls. The demand curve would _________ and the supply curve would__________
a
a. Shift to the right, shift to the left
b. shift to the left, shift to the right
c. shift to the left, shift to the left
d. shift to the right, shift to the right
as a result of the medical study, the demand for bikes would increase. this would shift the demand curve outwards or to the right.
the fall in price of parts needed to make bikes would reduce the cost of making bikes. this would lead to an increase in the supply of bikes. the supply curve would shift outward as a result.