Task: Answer the MCQ question.
Query: Which drug exhibits a 19.431% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: COc1ccc(-c2cc(C(=O)NCCCn3ccnc3)no2)cc1
b: O=C1C2C3C=CC(CC3)C2C(=O)N1c1ccc(Br)cc1[N+](=O)[O-]
c: Cc1cnc(NS(=O)(=O)c2ccccc2)c(Br)c1
d: COCCCn1c(=O)c2sccc2n2c(CCCC(=O)NCc3cccc(OC)c3)nnc12
Answer: b. O=C1C2C3C=CC(CC3)C2C(=O)N1c1ccc(Br)cc1[N+](=O)[O-]
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C1C2C3C=CC(CC3)C2C(=O)N1c1ccc(Br)cc1[N+](=O)[O-]
O=C1C2C3C=CC(CC3)C2C(=O)N1c1ccc(Br)cc1[N+](=O)[O-]
4-(4-bromo-2-nitrophenyl)-4-azatricyclo[5.2.2.02,6]undec-8-ene-3,5-dione