Answer:
A. Contrasting
Step-by-step explanation:
In the section "Though its contrasting wilderness and city scenes..." , the word contrasting is indeed a present participle acting as the adjective. Contrast is both a verb and adjective. And, a present participle is the form of a verb, ending in -ing in English, which is used in forming continuous tenses.
Though meaning ends in "-ing", it is an adjective or noun, NOT a verb.
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