Statement I : $S{N}^2$  reaction of  $C{H}_{3}Br$  is faster in DMSO than in  $H_{2}O$
Statement II : DMSO has greater capability to solvate nucleophile.

Statement I is true, Statement II is false

Statement I is false, Statement II is true

Statement I is true, Statement II is true and statement II is not correct explanation for Statement I

Statement I is true, Statement II is true and statement II is correct explanation for Statement I