The answer should be C. In ocean trenches
Explanation:
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<span> The himilayas are an example of an intervening obstacle, but that is an enviromental obstacle. You could have an economic obstacle such as a town along the way that may be in harsh poverty and you may not be able to continue migrating. Or a political obstacle: Migrating through a country that is ruled under a law that despises something about you like race, gender, culture, or personal status.</span>
