Final Answer:
Top sheet and pillowcases are necessary for a complete bed linen change, providing direct contact comfort for the sleeper, while other items like fitted sheets, duvets, shams and throws are supplementary for aesthetics but not essential for a complete change. Thus the correct option is a.
Step-by-step explanation:
For a complete bed linen change, essential linens include a top sheet and pillowcases. These linens directly come in contact with the sleeper, providing a layer of comfort and hygiene. Other items like fitted sheets, duvets, pillow shams, bed skirts, blankets, and decorative throws are additional elements that can complement the bed's appearance and comfort but aren't necessary for a complete change of bed linens.
When performing a bed linen change, the primary concern is ensuring the cleanliness and freshness of the linens that directly interact with the sleeper. The top sheet covers the body and the pillowcases provide a clean surface for the face.
These linens act as a barrier between the sleeper and the blankets or duvets, offering a layer that can be easily changed and washed. While fitted sheets, duvets, and other decorative elements contribute to the overall aesthetics and comfort of the bed, they are not mandatory components for a basic bed linen change. Thus, the top sheet and pillowcases are the essential linens required to perform a complete bed linen change, ensuring a clean and comfortable sleeping environment.
Therefore, the correct option is a.