The question was as follows
The hydrolysis of bromide E occurs faster than the hydrolysis of tert-butyl
bromide C unde r similar reaction conditions.
(And bromide E was the same but with another tert group at the other end of the molecule. )
As there is a decrease in coordination between starting material and the carbocation intermediate (with loss of leaving group being the rds), the extra bulky substituant will lead to steric acceleration.
However i have a feeling i'm wrong, as steric acceleration is due to the reactants in the ground state being more compressed/strained than the transition state. But here, the extra bulky group is not attached to the carbon containing the leaving group, it is attached to the carbon next to it. Though i cant think of any other explanation