Task: Answer the multiple choice question.
Question: Which drug exhibits a -73.657% 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 additional words.
Options:
a: CCOC(=O)Cc1csc(N/C(=N/S(=O)(=O)c2cc(Br)ccc2OCC)c2ccccc2)n1
b: CN(C)/C=N/C(=S)Nc1cc(Cl)cc(Cl)c1
c: COC(=O)c1cc(-c2c(-c3ccc4c(c3)OCO4)noc2-c2ccsc2)cc([N+](=O)[O-])c1
d: O=C(NCCN1CCN(C(=O)c2cccs2)CC1)C(=O)Nc1ccc(Br)cc1
Answer: d. O=C(NCCN1CCN(C(=O)c2cccs2)CC1)C(=O)Nc1ccc(Br)cc1
{#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=C(NCCN1CCN(C(=O)c2cccs2)CC1)C(=O)Nc1ccc(Br)cc1
O=C(NCCN1CCN(C(=O)c2cccs2)CC1)C(=O)Nc1ccc(Br)cc1
N'-(4-bromophenyl)-N-[2-[4-(thiophene-2-carbonyl)piperazin-1-yl]ethyl]oxamide