please help

Which of the following represents the transition state of the rate-determining step in the reaction between 2-bromopropane and sodiam methoxide leading to elimination? What is the equation for the rate of formation of tert-butyl alcohol from the reaction of tert-butyl bromide ( t-BuBr ) with water by an SN I mechanim? a. Rate =k[tBuBr]2 b. Rate =k[tBuBr][H2O] c. Rate =k[tBuBr] d. Rate =k[H2O] What is the best choice of reagent to achieve the following transformation? a. HOCl2,H2O b. HCl c. Cl2, light d. SOCl2, pyridine