I think you forgot to include the options. But to help you, the countries that are part of the heavily industrialized Black Triangle of Eastern Europe are Poland, Germany, and Czech Republic. Thank you for posting your question. I hope this answer helped you.
Examples of primary sources archives and manuscript material
photographs, audio recordings, video recordings, films
journals, letters and diaries
speeches
scrapbooks
published books, newspapers and magazine clippings published at the time
government publications
oral histories
records of organizations
autobiographies and memoirs
printed ephemera
Answer:
Hinduism is very common in India. 966 million people use it today. It is the main religion of India.
Explanation:
The correct answer is D
It became clear that an invasion of Japan would be extremely costly.(APEX)