Sathwik wants to buy an ice cream which costs Rs. 18. He checks his pocket and finds that he has these coins. Which of the following is true?

• A.  Sathwik can buy the icecream and be left with 50 paise.
• B.  Sathiwik cannot buy the icecream because he will fall short by 3 rupee and 50 paise.  
• C.  Sathwik cannot buy the icecream because he will fall short by 2 rupees and 50 paise.
• D.  Sathwik can buy the icecream and be left with 1 rupee and 50 paise.