Question: You buy an international calling card to India. The calling card company has some special offers. (a) If you charge your card with $5 or $10, you don't get anything extra. (b) For a $25 charge, you get $3 of extra phone time. (c) For a $50 charge, you get $8 of extra phone time. (d) For a $100 charge, you get $20 of extra phone time. Write a function that asks the user for the amount he/she wants on the card and returns the total charge that the user gets. Note: Values other than those mentioned above are not allowed.