<span>Determining the keystrokes of opening the cmos editor depends on the ram contained in the parameters in BIOS.It can be a very daunting task however made more accessible by instructions detailed in various ways by others.Research is needed.</span>
I am guessing "A" because you can store code anywhere and file structure does not prevent viruses.
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Letter B. is the answer
<span>B. Cell differentiation - start from a single cell and as the cells divide they become specialized</span>
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