<span>To Policies it seemed that Metas was having less than his due, so he applauded loudly, but he was surprised to observe that the soldiers frowned at him and that all his neighbours regarded him with some surprise
</span><span>The sentence in this excerpt from Arthur Conan Doyle's "The Contest" shows Policies' lack of knowledge about the rules and restrictions of his society because it shows how the soldiers reacted to the loud clapping of Policies and his surprise to this reaction.</span>
We don't have enough information to answer this.
I think the answer is because of all the stuff and wars and everything that happened back then they would now make more food because of poverty
Hm, I don't think that there is one certain answer, but here is some information to go on:
1) Native speakers often use dangling modifiers themselves - why should the learners not do it?
2) this would depend on their original language. If it has a similar structure, then yes, they would likely used them.
In total I would prefer a)