Apple maggots are a type of fly native to North America. Prior to the introduction of the apple tree to North America, apple maggots fed from and laid their eggs on hawthorn trees. After apple trees were introduced, some apple maggots began feeding from and laying their eggs on apple trees. Adult apple maggots will only mate on the type of tree on which they were born. What is the most likely consequence of the introduction of apple trees to apple maggots

B

Explanation:

Populations of apple maggots that mate on different trees could become reproductively isolated and eventually speciate.

The correct answer is option B

The population of maggots on the apple tree (apple maggot) that will mate on different trees could become reproductively isolated due to different habitat (ecological isolation).

Ecological isolation causes speciation by creating reproductive barriers between populations due to different habitats.The maggot populations  will mate on different trees and will eventually speciate over a period of time.

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