Which materials allow electrons to flow through them?

Answer options in the picture.

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility

Compound with sulfer  is bright red 

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.