Which of the following statements about GPU mining is CORRECT: A. Bitcoin mining cannot be parallelized. B. GPUs have the greatest cooling characteristics when you put a lot of them next to one...

Which of the following statements aboutGPU miningis CORRECT:

A. Bitcoin mining cannot be parallelized.

B. GPUs have the greatest cooling characteristics when you put a lot of them next to one another.

C. Graphics cards have many floating-point units that aren’t used at all in SHA‐256.

D. No graphics cards can be run faster than they're designed for.