Final answer:
In the context of window components, the term 'glazing' refers to the glass used in the construction of a window (option b). It is the actual material that allows light to pass through and provides insulation for thermal and acoustic purposes.
Step-by-step explanation:
The window component also known as glazing is b. Glass. Glazing refers to the process of fitting windows with glass. The glass used in the window is the actual component that constitutes the glazing of the window. It is not just limited to windows; glazing can also refer to doors, walls, and even roofs that have glass. When you are selecting windows for a building, understanding that the glazing essentially means the glass helps in making informative choices about the type of glazing required for different thermal and acoustic insulating properties.
Hence, the answer is option b.