Which one of the following is an example of a block mountain?

Black Forest Mountain is located in the Sawback Range in Alberta. The mountain was named so in 1958 because vertical fractures, which make up parts of the mountain, look like they are composed of huge blocks. These mountains are known as block mountains. The mountains of Satpura and Vindhya found in the central-western part of India are also examples of block mountains. The Great African Rift Valley (valley floor is graben), The Rhine Valley (graben) in Germany, the Vosges mountain in France, the Sierra Nevada in the USA and the Harz mountains in Germany are some other examples of block mountains.
Aravaliis, Andes and Caucasus are examples of folded mountains.