Several New Tetraploid Species of Plant Known as the Salsifies

Multiple Choice

Several new tetraploid species of plant known as the salsifies have arisen in western North America from diploid species by allopolyploidy.This mode of speciation is known as ________ and it occurs ________.

A) allopatric speciation;almost instantaneously
B) allopatric speciation;very slowly
C) sympatric speciation;almost instantaneously
D) sympatric speciation;very slowly
E) adaptive radiation;very slowly