It’s the last week of the month and you are running out of money. But you feel that the money you have will last you till the end of the month. So when your friend, to your amazement, is willing to lend you some money, you say:

The correct answer is A because 'a little money' means a small amount (positive meaning), fitting the context of having enough money to last. Option D says 'little money' which means hardly any (negative meaning), contradicting the context that the money will last. Options B and C incorrectly use present continuous 'am having' which is not used for stating possession.