Correct Answer: A
Explanation:
(A) Something that is plain is the opposite or ornate – the former means simple, the latter means fancy. Similarly, austere and luxurious are opposites – something austere is plain and severe, something luxurious is rich and comfortable.
ORNATE: showy or flowery, as some literary styles
Austere: having a severe or stern look, manner,
etc.; forbidding
Obvious: easy to see or understand; plain; evident
Embellished: to improve (an account or report) by
adding details, often of a fictitious or
imaginary kind; touch up
Garish: gaudily or showily dressed, decorated,
written, etc.
Gaudy: bright and showy, but lacking in good
taste; cheaply brilliant and ornate