What book is this you didn't say
The research suggests we may have little time left to help the big cats of the world.
<em>However</em>
Our progress in all major habitats has been very encouraging.
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.
Definition of Insensitive: it is the sense of having absolutely no concern for other people's feelings
<u>Answer:</u> Victor falls into another sickness