The answer is A because Germany stood as a sing of superiority of Europe and the Russians were not going to let them win.
It was different because it remained independent during the colonial era when the rest of South East Asia was colonized. It modernized itself and worked with both British and French colonies but remained independent and chose who they wanted to work with. The territory of Siam is what is nowadays known as Thailand, so you can see that Thailand managed to develop itself and its culture independently of the colonizers who ran rampant among the South East Asian region and which caused many wars in recent times.
The answer in the space provided is Fontelle. It is the work
of Fontelle that had provided connections between enlightenment and science as
his work was able to link of the two and to properly provide a better
understanding of how it was connected.