A pagan is a person that adores nature instead that traditional religious figures.
The poem The World Is Too Much With Us by William Wordsworth talk about a person that worships nature and all alone its lines we can see how the speaker describes all the wonders we normally don't see.
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.
