If the demand for using the Noida express way is given by Q = 40,000 - 2,500P
Where Q is the number of users (vehicles) and P is the amount of toll collected per unit who uses the express way. In light of this information which of the following is true?

A. At P = Rs. 6 and Q = 14,000, demand is price inelastic

B. At P = Rs. 7 and Q = 16,500

C. At P = Rs. 4 and Q = 9,500, demand is price elastic

D. All of the above

Answer: Option C