The price of apples at a local market rises from $2.95 to $3.10 per kilo, and as a result the quantity of oranges that households purchase increases from 3,960 to 4,010 kilos per week. The cross-price elasticity is

The choices are:

a. 1.40

b. -0.25

c. 1.25

d. 0.25

e. -1.25