The correct option is
C little
Money, is an uncountable singular noun, although special plural of money, that is ,monies does exist, but it is used only in official business contexts.
Even though we know that money that we see can be counted, but as a Noun, it is termed collectively, and hence uncountable.
So the correct answer is Option C because "little" is used when the given word is an uncountable noun.
Option A and B are incorrect answers because "few" and "a few" are used for plural countable Nouns.
Option D is incorrect because Some is used in affirmative sentences or when asking or offering something. Also, we don't use 'very' before 'some'.
Hence, Option C is the correct answer.