Answer:
B. to keep their chief god strong
Explanation:
The Aztec believed that they owed everything to the gods who created themselves as well as the world around them. The would perform sacrifices in order for a good crop yield or good weather among other things. They believed that the best way to repay them was to offer up blood to them in regular rituals.
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I believe the answer is <span> "expressed" or "enumerated" powers.
Expressed powers refers to the type of powers that are directly written in United States' constitution.
Examples of Expressed powers are: The power to regulate trading relationship with other countries, the power to allocate tax payment into welfare programs, etc.</span>