Estimating and Costing - Engineering

Q1:

The unit of measurement is per quintal for the following:

A Collapsible gates with rails

B Rolling shutters

C Expanded metal wire netting

D M.S. reinforcement of R.C.C. works.

ANS:D - M.S. reinforcement of R.C.C. works.

EXPANDED metal wire netting is measured in M' or per quintal?

Because in the question paper of DMRC JE 16-02-2017 Ist shift & 2nd shift Expanded metal wire netting is considered in per quintal. Can anyone explain about it?