A) It is rare in plants

B) Wheat, cotton, and potato are examples of allopolyploids

C) Polyploids cannot arise naturally

D) Polyploidy decreases speciation


Answer: B) Wheat, cotton, and potato are examples of allopolyploids

Explanation: Polyploidy is common—30–80% of plant species show evidence. Examples like allopolyploid wheat, cotton, and autopolyploid potato illustrate natural occurrences.