Which of the Following Statements About Plant Speciation and Hybridization

Which of the following statements about plant speciation and hybridization is false?

A) Most plant species trace their origin to polyploid speciation.
B) Bread wheat is the ancestral diploid wheat plant.
C) Modern plant geneticists use chemicals to induce meiotic and mitotic errors to try to create new hybrid plants with special qualities.
D) Bread wheat grown widely today is the result of several hybridization events.