The buildings constructed during the 19th century were all in a Neoclassical style. In fact, the buildings constructed during the 19th century are considered some of the most diverse styles as they ranged from different eras. Some of them were from Neoclassical style, some from Napoleonic era and some were from the Gothic era or were based on Gothic styles. Hence, making them historically different in terms of style.
Yes. It's all multiple choice questions and for every section you get limited time. For math you only get calculators for one section, the other section you don't.