The "middle ages" are anything between the collapse of Rome (400 AD) to its re-emergence in Rennaissance Italy (1400). Rennaissance means "rebirth". The "dark ages" are the period in the middle ages which were relatively undocumented. This would definitely include 400 AD to 700 AD, and some extend it to 900 AD.
your answer is b. i know this because oil is a chemical.
I believe the answer is B
Answer:
C. Recover the user data.
Explanation:
Because a virus delete user data
A. string? maybee its a string of units