Correct Option: B

Stingy (Adjective) = Mean, ungenerous; miserly; mean; unwilling to spend money.
Generous (Adjective) = willing to give money, help, kindness etc. especially more than is usual or expected; larger or more plentiful than is usual or necessary. Look at the sentence : It was generous of you to lend me the money. The landlords are so stingy– they refused to pay for new carpets.