Verified Answer :

ash829

The adjective Refined  has 6 senses:

1. (used of persons and their behavior) cultivated and genteel
2. freed from impurities by processing
3. showing a high degree of refinement and the assurance that comes from wide social experience
4. made pure
5. suggesting taste, ease, and wealth
6. free from what is tawdry or unbecoming

Answer:

D. it has been improved by having unwanted substances removed

Explanation:

I just did the test :)