Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 2.331\% 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) CCN(CC)CCCN1C(=O)C(=O)/C(=C(/O)c2ccc3c(c2)OCCO3)C1c1ccco1
(b) O=C(N/N=C/c1cccnc1)c1ccc([N+](=O)[O-])cc1Cl
(c) O=C(CCN1C(=O)/C(=C/c2ccccc2F)SC1=S)NCCc1ccc(O)cc1
(d) CNC(=S)N1CCn2cccc2C1c1ccc(F)cc1
Answer: b. O=C(N/N=C/c1cccnc1)c1ccc([N+](=O)[O-])cc1Cl
{#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(N/N=C/c1cccnc1)c1ccc([N+](=O)[O-])cc1Cl
O=C(N/N=C/c1cccnc1)c1ccc([N+](=O)[O-])cc1Cl
2-chloro-4-nitro-N-[(E)-pyridin-3-ylmethylideneamino]benzamide