d. all of the above.
Crystalline solids:- Solid which is formed by arranging the components in a regular repeating three-dimensional array (a crystal lattice),.eg:- sodium chloride, quartz, diamond, etc.
In general, metals are malleable,ductile and good conductors of heat and electricity.
Malleability:-The quality of something that can be shaped into something else without breaking.
Ductility:-The relative ability of a material to be stretched plastically at room temperature without fracturing
Conductivity:-The measure of the ease at which an electric charge or heat can pass through a material.
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