Mansa Musa depended heavily on the gold trade for his power.
<span>Mansa Musa depended on a series of local city networks for his power. </span>
<span>Mansa Musa used his connection with the Christian rulers to achieve power. </span>
<span>Mansa Musa encouraged an isolated network of trading cities for his power.</span>
This would be called a trade-of B.
The reason why this is correct is because if you can only build one thing as a company and you decide that building war equipment is more important to you, then you're doing a trade-off between building butter-making machines and army tanks.