The correct answer is A. It starts with very specific details, devoid of any emotional interfering on the narrator's part. The only subjective detail in this line is the estimation "very strange". Still, it doesn't disturb the factuality of the context, which is firmly rooted in precise time and place references.
<span>A concept is the way in which a category or class of objects is represented mentally. Concepts allow individuals to discern class membership or non-membership, relate different classes of objects, and provide context for learning new information about classes and class membership. There is wide debate about the way in which categories and classes are mentally represented and defined. The way in which concepts are learned can depend on the age of the learner, whether or not explicit instructions are provided, and the type of category or class the concept represents.</span>
Explanation:
That's where human life forms originated from
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