Cryptography used to be an obscure science, of little relevance to everyday life. historically, it always had a special role in military and diplomatic communications. but in the information age, cryptography is about political power, and in particular, about the power relationship between a government and its people. it is about the right to privacy, freedom of speech, freedom of political association, freedom of the press, freedom from unreasonable search and seizure, freedom to be left alone. —the code book, simon singh  which part of the passage supports the claim that the information ordinary people send digitally should be protected? a)“cryptography used to be an obscure science.”  b)“cryptography is about political power.”  c)“it always had a special role in military.”d)“it is about the right to privacy.”