First person thats how the story is told by one of the characters
<h2>
Answer:</h2>
<h3>D or B </h3>
<h2>
Explanation:</h2>
<h3>I'm not sure but </h3>
<h3>I hope its help</h3>
<h2>#Carry On Learning</h2>
Hiram Bingham discovered Machu Picchu on July 24th 1911
I'd say d is the answer. By chemical attack, it is specifically a gas attack. Gas masks, all buy one is able to put on their gas masks. Presumably that one guy died. B is definitely incorrect.
