Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -5.139\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) O=C(COc1ccc([N+](=O)[O-])cc1)NCCc1nc2ccccc2[nH]1
(b) COc1cc(C(=O)N/N=C(\c2ccccc2)c2ccccn2)cc(OC)c1OC
(c) CCn1c(SCC(=O)Nc2nccc(C)n2)nc2ccccc21
(d) O=C(O)C1CCCCC1C(=O)Nc1ccccc1F
Answer: a. O=C(COc1ccc([N+](=O)[O-])cc1)NCCc1nc2ccccc2[nH]1
{#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(COc1ccc([N+](=O)[O-])cc1)NCCc1nc2ccccc2[nH]1
O=C(COc1ccc([N+](=O)[O-])cc1)NCCc1nc2ccccc2[nH]1
N-[2-(1H-benzimidazol-2-yl)ethyl]-2-(4-nitrophenoxy)acetamide