The correct answer is: B.Sympatric speciation
Explanation:
In this case, the two species of palms on Lord Howe Island diverged due to differences in flowering times and soil preferences, but they are still living in the same geographic area. This means they were not physically separated by a geographic barrier, but rather evolved into distinct species due to ecological factors such as different flowering times and habitat preferences. This is an example of sympatric speciation, where speciation occurs within the same geographic area without physical separation.
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