for example ,let us take 9 a's & 5 b's
(D)
9 mod 3 >5 mod 3 => 0>2 (false -Not accepted)
(E)
9-5=4 => 4 mod 3 =1 =>1> 0 (true -accepted)
another example ,let us take 5 a's & 9 b's
(D)
5 mod 3 >9 mod 3 => 2>0 (true -accepted)
(E)
5-9=-4 => -4 mod 3 = -1 => -1>0(false-Not accepted)
language (E) is different from (D)
correct me if I am wrong!!