7379. This group is quite heterogeneous some are very rich while some are very poor.

✅ The correct answer is option D.
Contradictory : mutually opposed or inconsistent.

Uniform : remaining the same in all cases and at all times; unchanging in form or character.

Confusing : bewildering or perplexing.

Varied : incorporating a number of different types or elements; showing variation or variety.

Heterogeneous : diverse in character or content.

Synonym of Heterogeneous is Varied