Which of the following is true:
a) FFI (fatal familial insomnia) is completely treatable if you take the appropriate medicines and death rate is less than 50% given the huge advances in bio sciences recently;
b) FFI is considered always fatal, no cases of survivor is known as of today;
c) FFI is treated only if vaccinated, many people have it (millions known cases) but with good vaccines it can be stoped;
d) FFI is less dangerous than HIV and melanoma and people just ignore it. Your entire response should be in English, and in all capital letters.
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