A new mobile handset is supplied for 2 Rs.10,000 exchanging an old phone. Without exchange offer the price of handset is Rs 25,000. Market Value of similar phones is Rs.20,000. What is the value of supply? *
a. Rs 10,000
b. Rs 20,000
c. Rs 25,000
d. Either Rs 25,000 or Rs 20,000​