Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.517\% 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) CCOC(=O)CC1C(=O)NCCN1S(=O)(=O)c1ccc(Br)cc1
(b) CS(=O)(=O)N1CCN(c2ccccc2NC(=O)c2ccc3ccccc3c2)CC1
(c) Brc1ccc(-c2nnc(-c3cccc(Br)c3)o2)cc1
(d) CCOC(=O)c1cc2c(C)n(-c3ccc(OCC)cc3)c(C)c2cc(C(=O)OCC)c1=O
(e) COc1ccccc1Oc1nnnn1-c1ccc(C(N)=O)cc1
Answer: c. Brc1ccc(-c2nnc(-c3cccc(Br)c3)o2)cc1
{#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#}
Brc1ccc(-c2nnc(-c3cccc(Br)c3)o2)cc1
Brc1ccc(-c2nnc(-c3cccc(Br)c3)o2)cc1
2-(3-bromophenyl)-5-(4-bromophenyl)-1,3,4-oxadiazole