Which of the following about the relationship between ISP 1 and ISP 3 is TRUE?

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Which of the following about the relationship between ISP 1 and ISP 3 is TRUE?
A . ISP 1 is downstream from ISP 3 and is expected to push more traffic toward ISP 3 than it pulls from it.
B . ISP 3 is downstream from ISP 1 and is expected to push more traffic toward ISP 1 than it pulls from it.
C . ISP 1 is downstream from ISP 3 and is expected to pull more traffic from ISP 3 than it pushes toward it.
D . ISP 3 is downstream from ISP1 and is expected to pull more traffic from ISP 1 than it pushes toward it.

Answer: C