Answer:
c) movement along
Explanation:
A change in price of shampoo would lead only to a movement along the demand curve for shampoos. The movement could either be up or down. If price increases, the movement is up and if prices decreases, the movement is down.
Changes in price affect the quantity demanded. If price is increased, quantity demand falls and if price falls, quantity demanded rises.
Other factors lead to a shift of the demand curve. Some of them include:
1. Change in consumers income
2. Change in taste
3. Change in price of subsituites.
I hope my answer helps you
