Suppose we know that the price elasticity of demand for organic apples is -1.2.If a grocer increases the price of organic apples by 15%, what would we expect to happen to the quantity of organic apples purchased?

a) Decrease by 1.2%

b) Decrease by 12%

c) Decrease by 1.8%

d) Decrease by 18%

e) Decrease by 2.4 %