Hi!
I would say B, writing, because you need someone to teach you how to write.
Hope this helped!
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One way that scientist hope to use the recent knowledge gained about non coding RNAs lies with the possibilities for their use in medicine. I would expect to gain most from RNAs which is one of the scenarios for future research will be targeting siRNAs to disable the expression of an allele associated with autosomal dominant disease.
The answer is checks. Older people use check as they're a lot more simple than technology today.