Why are length,mass,and time chosen as base quantities in mechanics?

(N/A) The reasons for choosing length,mass,and time as base quantities in mechanics are:
$(i)$ Length,mass,and time are independent physical quantities and cannot be derived from any other physical quantities.
$(ii)$ All other physical quantities in mechanics,such as velocity,acceleration,force,work,and energy,can be expressed in terms of these three base quantities.