OPTION A:- INCORRECT
why would just say other and not others, in line with the plurality of characteristics? Because the parallelism starts after "Lungfish have some" so the part after and will be "some other " Hence, the usage of other is correct here and others.

OPTION B:- CORRECT
Is a contrast intended to not? If intended, why the contrast marker 'but' is missing, we don't need a contrast here, because we are saying some characteristics are like X and others like Y. Also, the contrast should be at the level of species, as mammals vs aquatic animals and not mammals vs fish.

OPTION C:- INCORRECT
If the list contains just two phrases, why a comma is used before the 'and' ? It is believed though we are joining phrases here, we use comma to separate list in order to avoid confusion as we are using some characteristics and we need clear distinction between other characteristics.

OPTION D:- INCORRECT
Here, the structure is broken and the sentence construction looks awkward.

OPTION E:- INCORRECT
Incomplete sentence, redundant use of words and repetition of words