Answer:
'Although their agricultural exports declined, their share of global manufacturing increased' is correct.
I believe it was Germany, hope this helps.
London and Paris are major. rome? Athens?
A historian would first look at the reliability of a source - when it was published and what was happening at the time (context), who wrote it and their qualifications, any bias the author may hold, whether author sources corroborate the source, whether the author has used references, whether the source provides evidence, who the source is representative of and whether the source provides a balanced perspective
