Question

what must you check to make sure a bolt - action firearm is unloaded?
a magazine and trigger
b open action and magazine
c open action and muzzle
d muzzle and trigger
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Explanation:

To ensure a bolt - action firearm is unloaded, one must check the open action (to see if there is a round in the chamber) and the magazine (to ensure no rounds are present in the magazine which could be chambered). Checking the trigger does not confirm if the firearm is unloaded. Checking the muzzle alone is not sufficient as there could still be a round in the chamber or magazine.

Answer:

B. open action and magazine