Correct option is A
Option (a) is the correct order of the given sentences.
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Sentence D introduces the primary actors in the context, the male weaver birds, and their role as architects and craftsmen. It sets up the scene for describing an activity related to their construction abilities.
· Following from D,
sentence C details the activity of the male birds. It specifies what they do as architects: selecting a location and starting the construction of their nests. This directly connects to the role introduced in D.
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Sentence B continues from the activities described in C, focusing on a broader perspective of both male and female birds arriving and choosing the nests. This sentence adds more detail about the behavior of the birds once the construction phase is at a point where inspection is possible.
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Finally, A shifts the focus to the female birds, explaining their specific role in the reproductive cycle, which contrasts with the building role of the males. This sentence rounds off the paragraph by distributing the tasks between the genders, completing the narrative of division of labor in weaver birds.