Zeszłej nocy dwóch zamaskowanych mężczyzn wtargnelo do siedziby jednego z wiodących potentatow branzy jubilerskiej celem zrabowania prezentowanych tam zabytkowych zestawow srebrnych i zlotych sztuccow ze specjalnej zastawy stolowej sluzacej wygasłemu w XVIII wieku rodu Schnitzelnazzich, lupem porywaczy padl miedzy innymi inkrustowany szmaragdami noz do sera określany przez rzeczoznawców jako zabytek klasy zerowej
I think it is A : mark saying that he is nervous
True, if there may be a possibility that you would have to speak in a different language. And the people who would speak a foreign language would somewhat trust the leader since he/she knows how to speak the language. Hope this helps.
Although I'm not sure exactly what you're asking, it looks like you'e been waiting a while so I'm gonna give it a shot. At the beginning of it, It says began to rock which is present tense so it makes it sounds as if it is happening as we read it but then threw is past tense which makes it sound like it already happened.
Again I'm just pretty much guessing but that's all I got. Sorry if it didn't help but I tried.