Answer:
A
Explanation:
The formula for price elasticity of supply is:
Percentage change in quantity supplied ÷ percentage change in price
From $25 to $30
% change in quantity = (500 - 350)/350 = 42.86%
% change in price = (30 - 25)/25 = 20%
PES = $42.86/$20 = 2.143,