Which type of boundary BEST describes Location 4 (South American Plate)? A. Transform Boundary
B. Convergent Oceanic-Oceanic Boundary
C Divergent Boundary
D. Convergent Oceanic-Continental Boundary

I would say D. Convergent Oceanic-Continental Boundary

Explanation:

Because based on the image and the key, we know the plates are moving towards each other, due to the direction of the arrows, and they are converging, because the squared-line is present. We also know that the plates are pushing at the edges of the ocean and the continent.

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donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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i googled "who was kolson johanson" and this is the answer i found.

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the exclusive possession or control of the supply or trade in a commodity or service.