The rock is limestone, I hope this helps!!
C. <span>Regulatory proteins bind to repressor
Both produces certain proteins to break down lactose as a food source.</span>
<span>N-methyl 2 pyrrolidone is a cyclic amide and it when heated with aqueous acid gives the product as a cyclic amino acid. The product name is </span><span>N-Methyl-4-aminobutyric acid</span><span>
The reaction is given as follows in the attached picture.
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Answer:
The right objective is A I guess