Final answer:
The correct answer is option a. The word 'unpretentious' aligns most closely with the meaning of 'simple' as it conveys modesty and lack of pretense, unlike something complicated or showy.
Step-by-step explanation:
The word unpretentious most closely means simple. It describes something or someone that is not attempting to impress others with an appearance of greater importance, talent, or culture than is actually possessed. The opposite would be pretentious, which implies a false or exaggerated show of worth or importance. In the context of the options provided, the best match would therefore be 'A. simple'.
An unpretentious person doesn't put on airs or try to seem more sophisticated to impress others. They are comfortable with who they are and modest in their behavior and appearance. For example, an unpretentious home might be cozy and comfortable without extravagant decorations or high-end furnishings.