Explanation:

First identify the relation between the given pair. Here, errata is a list of mistakes attached at the end of a book, after the book is published i.e. mistakes left in the finished product. Similarly 'flaws' also means 'mistakes' and mistakes can be in manuscripts, speech and charter also. But we cannot have three correct options. So the question is based on secondary meaning of the words instead of primary meaning of the given words. 'Flaws' also means 'impurities' left in the metal after it is purified. Now this is the perfect analogy. Hence the answer is 'flaws : metals' i.e. option D. Errata is MISTAKES left after the book is published and 'flaws' are the impurities left in the metal after it is purified.

Hence, opiton 2 is the correct answer.