Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a -3.868\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) O=C(C1=C(O)C(=O)N(CCN2CCOCC2)C1c1cccc([N+](=O)[O-])c1)c1cccs1
(b) O=C(NNC(=O)c1ccccc1Br)c1cccc(Cl)c1
(c) COc1cccc(NC(=O)COC(=O)c2ccccc2SCC(=O)N2CCCC2)c1
(d) O=C(O)CCC(=O)Nc1ccc2c(c1)Cc1cc(NC(=O)CCC(=O)O)ccc1-2
(e) COc1ccc(Cn2ccnc2SCC(=O)Nc2ccccc2OC)cc1
Answer: b. O=C(NNC(=O)c1ccccc1Br)c1cccc(Cl)c1
{#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(NNC(=O)c1ccccc1Br)c1cccc(Cl)c1
O=C(NNC(=O)c1ccccc1Br)c1cccc(Cl)c1
2-bromo-N'-(5-chlorobenzoyl)benzohydrazide