Im going to go with b im not 100% sure tho srry if im wrong <span />
Answer:
The article about the Romani ethnic group is most likely followed by how the European Union is helping reduce antiziganism.
Explanation:
The first one. The commas are correctly placed. Sorry if this is wrong.
The correct option is this: WRITING IS DIFFICULT BECAUSE SO MANY SKILLS ARE INVOLVED.
A topic sentence refers to the sentence which expresses the main idea of the paragraph in which it occurs. The topic sentence is usually the opening sentence in the paragraph; the other sentences in the paragraph just serve to support the topic sentence.