could you please answer all of them. I really appreciate. thank you so muchh

Give IUPAC names for the following structures. (If appropriate, specify relative stereochemistry.) (a) (b) From the choices given below, list the reagent(s) in the order needed to achieve the given transformations. List your answer as a single letter (single-step transformation) or a series of letters (multistep transformation) with no commas separating them. For example, "hg". Note: The order in which you list your letters matters! (a) Starting with trans-2-butene, show how to prepare meso-2,3-butanediol. (b) Starting with cis-3-hexene, show how to prepare racemic 3,4-hexanediol cis-2,3-dimethyloxirane can react with hydrochloric acid to form 3-chloro-2-butanol . (a) How many total stereoisomers are possible for 3-chloro-2-butanol? (b) Given that opening of the epoxide ring in this reaction is stereoselective, provide the names (using IUPAC guidelines) of the only two isomeric products formed. product 1: 3-chloro-2-butanol product 2: 3-chloro-2-butanol