PT 1 S4 Q7

When Cortez arrived in Mexico in A.D. 1519, heobserved the inhabitants ... ...

The conclusion reached above depends on which one of the following assumptions?
(A) The pre-Columbian inhabitants of Mexico played games on all ceremonial occasions.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Necessary Premise (NP): Practice Set 1 - Moderate Questions