The correct option is D a little
The most appropriate quantifier to be filled in the blank is “a little.” Here, “time” is an uncountable noun. So, “few” and “a few” cannot be used because these quantifiers are used with countable nouns. “Little” is used with an uncountable noun to mean “not much” and “a little” is used to mean “some”. So, using “a little” in this sentence makes it meaningful and grammatically correct.