4. For (a) circle the most relative stable structure. Show work by drawing relevant chair structures and/or Newman projections (as needed) to clearly illustrate why. Explain your choice with a few words (no more than one sentence). It is best practice here that only the most stable conformations for each compound are being compared. For (b), provide a brief explanation for why chair 1 is more stable than chair 2. (10pts) (a) & VS. (b) CI- chair 1 I CI chair 2 Briefly explain why chair 1 is more stable (and more favorable) than chair 2.