The correct option is A Practical
Antonyms are words which have the opposite meaning in comparison to the other. Option A)practical is correct as the word practical means of or concerned with the actual doing or use of something rather than with theory and ideas and the word Utopian means modelled on or aiming for a state in which everything is perfect; idealistic. The other options are wrong as ideal, visionary, and native of Ethiopia mean satisfying one's conception of what is perfect; most suitable, thinking about or planning the future with imagination or wisdom, and citizen of the country Ethiopia respectively. The correct answer is A)practical.