i need help with c and d

(22 pts) Consider the hydroboration oxidation of (E)-3,4-dimethyl-2-pentene. a. (5 pts) Draw out the overall reaction for this process showing all major regio-product(s). Show stereochemistry. I . BH3 / THF 2. OH- HO HO i 2 i 22 (E)-3,4-dimethyl-2-pentene b. (12 pts) Provide a complete mechanism for this reaction. Use curved arrows to show all electron movement. Be sure to include all lone pairs and fonnal charges. If applicable, you only need to show the formation of one stereoisomer but be specific in the stereochemistry throughout the mechanism. c. (3 pts) Draw the transition state of the first step the regioselectivity of the hydroboration oxidation reaction. d. (2 pts) Is this reaction stereoselective? Briefly explain.