The correct answer is option 3) i.e. miceExplanation:Out of the given options, only 'mice' is the plural(??????) form of the noun 'mouse'.Although other options look like plural forms, actually they are not used as plural nouns. (??????? ???? ?????? ?????? ????? ?? ??? ????? ???, ?????? ??? ???? ????? ?????? ?????? ?? ??? ??? ???? ???? ???? ??)? Options other than option (3) i.e. mice, look like they are in plural form as in most of the cases, the plural form of a noun is made by adding 's' or 'es' in the noun. (?????? (3) ???? ????? ?? ????? ???? ??????, ??? ???? ?? ?? ?? ?????? ??? ??? ??? ??????? ??????? ?????? ??? ?????? ?? ?????? ??? ?????? ??? 's' ?? 'es' ?????? ???? ???)?Examples: Chair-chairs; bench-benches, pen-pens, etc.Let's look at all other options one by one-Option 1) i.e. News: It is singular in nature and for its plurality, we use some determiners like a piece of news, two pieces of news, an article of news, two articles of news, etc. (?? ??????? ??? ????? ?? ?? ???? ?????? ?? ???, ?? ??? ?????????? ?? ????? ???? ??? ???? ?????? ?? ?? ??????, ?????? ?? ?? ??????, ?????? ?? ?? ???, ?????? ?? ?? ??? ????)Option 2) i.e. Electronics: It is subject and is always written as it is. (?? subject ?? ?? ????? ???? ?? ???? ?? ???? ???? ??)Option 4) i.e. Billiards: It is a game and it is always written as it is.? (?? ?? ??? ?? ?? ??? ????? ???? ?? ???? ?? ???? ???? ??)