The ________________ consists of one part of cement to four parts of clean, coarse and angular river sand by volume.
(a) Lime Mortar
(b) Water proof mortar
(c) Cement mortar
(d) Hydraulic Mortar
I got this question in an international level competition.
I would like to ask this question from Mortar for Plastering topic in chapter Pointing and Plastering of Construction & Building Materials