which of the following could be effectively used to reduce friction (a) water (b)petrol (c) kerosene (d) grease​

Answer :

Answer:

[tex]\huge\boxed{\mathfrak{\underline{Answer...}}} \\ \\ \huge\mathfrak\red{grease} \\ \\ \huge\mathfrak\purple{hope \: it \: helps}[/tex]