Sympatric speciation

A、involvesreproductiveisolationofdispersedpopulations.
B、isoftenassociatedwithpolyploidyinanimals.
C、iscommoninplantssincemanyplantspeciescanreproduceByself-fertilization.
D、canresultfromthegenerationoffertiletriploidplants.
E、resultsonlyfromthegenerationofallopolyploids.