Which word has th most negative connotation?

I'd say the answer is A. Impatient.

Usually when you say someone is impatient, you're not saying that in a good way, therefore, it has a negative connotation.

Enthusiastic, eager, and excited, are all usually used in a good way. So they have a positive connotation.

imparadis't in one anothers arms  

the happier eden, shall enjoy their fill  

of bliss on bliss, while i to hell am thrust,  

where neither joy nor love, but fierce desire,  

among our other torments not the least,  

still unfulfill'd with pain of longing pines;  

yet let me not forget what i have gain'd  

from their own mouths; all is not theirs it seems:  

one fatal tree there stands of knowledge call'd,  

forbidden them to taste: knowledge forbidd'n?  

suspicious, reasonless. why should their lord  

envie them that? can it be sin to know,