Task: Answer the multiple choice question.
Query: Which compound exhibits a 8.239\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CCOc1ccc(S(=O)(=O)NC2CCCC2)cc1C
b: O=C(NCc1cccnc1)NC1CCCCC1
c: O=C(O)c1ccccc1C(=O)NCCc1ccc(Cl)cc1
Answer: b. O=C(NCc1cccnc1)NC1CCCCC1
{#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(NCc1cccnc1)NC1CCCCC1
O=C(NCc1cccnc1)NC1CCCCC1
1-cyclohexyl-3-(pyridin-3-ylmethyl)urea