Several new tetraploid species of plant known as the salsifies have arisen inwestern north america from diploid species by allopolyploidy. this mode ofspeciation is known as and it occurs (1 point) a. allopatric speciation; almost instantaneouslyb. allopatric speciation; very slowlyc. sympatric speciation; almost instantaneouslyd. sympatric speciation; very slowlye. adaptive radiation; very slowly

C. sympatric speciation; almost instantaneously

Explanation:

When new specie is evolved from the ancestral species which are surviving, this type of specification is called as Sympatric Speciation. Both ancestral and evolved new specie continue to live in the same geographical area.  For example

In the question above a new tetraploid species of plant known as the salsifies have evolved in western North America from  ancestral diploid species by allopolyploidy.

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