(A) : Electric field is in the direction in which the potential decreases 

(R) : In the formula $E=\frac{-dV}{dr},-ve$ sign indicates potential decreases in the opposite direction of the electric field

Electric field points from areas of higher potential to lower potential due to the tendency of charges to move to lower energy states, aligning with the direction of potential decrease.

$E=-\frac{\mathrm{dV}}{\mathrm{dr}} - \mathrm{sign} \mathrm{indicates} \mathrm{direction} \mathrm{of} \mathrm{decreasing} \mathrm{potential} \mathrm{along} \mathrm{the} \mathrm{field}$