Fill in the blank with the correct word from the given options:-Just_…

The correct answer is Option (3) → a little

Complete sentence: Just a little is necessary for handling chemicals in the lab. Only a small amount (of care) is needed when handling chemicals, so "Just a little is necessary".

Option	Meaning and use	Example
(1) The little	The little means the small amount that there is, a particular amount already known. "The little" refers to a particular small amount already mentioned. No such amount has been mentioned here.	He spent the little money he had on books.
(2) few	Few is used with plural countable nouns and needs a plural verb ("few are"), not "is".	Few students came to the extra class.
(3) a little (answer)	A little means a small amount, but some. It is used for uncountable things (care, caution, water). Little without "a" means hardly any.	Add a little salt to the soup.
(4) Less	Less is a comparative (a smaller amount than something else), and nothing is being compared. "Just less" is not idiomatic.	You should eat less sugar.