Alcohols, haloalkanes and analysis

Which statement is correct for the different rates of hydrolysis of $RBr\text{RBr}$ and $RI\text{RI}$ ?

$RI\text{RI}$ is hydrolysed faster because $Br\text{Br}$ is more electronegative than $I\text{I}$ .

$RI\text{RI}$ is hydrolysed faster because the $C−Br\text{C}-\text{Br}$ bond enthalpy is greater than $C−I\text{C}-\text{I}$ .

$RBr\text{RBr}$ is hydrolysed faster because $Br\text{Br}$ is more electronegative than $I\text{I}$ .

$RBr\text{RBr}$ is hydrolysed faster because the $C−I\text{C}-\text{I}$ bond enthalpy is greater than $C−Br\text{C}-\text{Br}$ .

Alcohols, haloalkanes and analysis Questions

Which statement is correct for the different rates of hydrolysis of $RBr\text{RBr}$ and $RI\text{RI}$ ?

$RI\text{RI}$ is hydrolysed faster because $Br\text{Br}$ is more electronegative than $I\text{I}$ .

$RI\text{RI}$ is hydrolysed faster because the $C−Br\text{C}-\text{Br}$ bond enthalpy is greater than $C−I\text{C}-\text{I}$ .

$RBr\text{RBr}$ is hydrolysed faster because $Br\text{Br}$ is more electronegative than $I\text{I}$ .

$RBr\text{RBr}$ is hydrolysed faster because the $C−I\text{C}-\text{I}$ bond enthalpy is greater than $C−Br\text{C}-\text{Br}$ .