Answer: 0.26
Inelastic- C
Explanation:
Price elasticity of supply is calculated as the percentage change is quantity supplied divided by percentage change in price.
The percentage change in price = 30%
The percentage change in supply = (420 -390) ÷ 390 × 100 =7.69%
Price elasticity = 7.69÷30 = 0.26
When elasticity of supply is less than 1 ,it is inelastic