Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.984\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: Nc1nnc(CSc2ccc(Cl)cc2)s1
b: COC(=O)c1ccc(NC(=O)CSc2nnc(C)n2CC2CCCO2)cc1
c: O=C(NCc1ccccn1)Nc1ccc(Br)cc1
Answer: c. O=C(NCc1ccccn1)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_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(NCc1ccccn1)Nc1ccc(Br)cc1
O=C(NCc1ccccn1)Nc1ccc(Br)cc1
1-(4-bromophenyl)-3-(pyridin-2-ylmethyl)urea