Task: Answer the multiple-choice question.
Question: Which drug exhibits a -6.368\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C(Cc1ccc([N+](=O)[O-])cc1)OCc1ccc([N+](=O)[O-])cc1
[b] O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCCC1
[c] COCc1nnc(NC(=O)C2CC(=O)N(C3CCCC3)C2)s1
Answer: b. O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCCC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCCC1
O=C(CCNC(=O)c1ccc([N+](=O)[O-])cc1)Nc1ccccc1N1CCCC1
oxido-oxo-[4-[[3-oxo-3-(2-pyrrolidin-1-ylanilino)propyl]carbamoyl]phenyl]azanium