Task: Answer the multiple-choice question.
Query: Which drug has a -0.306\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a) O=c1c2[nH]c3ccc(Br)cc3c2ncn1Cc1ccncc1
b) O=C(NC1CCCCCCC1)NC1CCCCC1
c) Cc1ccc(NC(=O)CCC(=O)OC(C)C(=O)c2ccccc2)cc1
d) O=C(CSc1nnc(COc2ccccc2Cl)o1)NC(=O)NCc1ccco1
Answer: b. O=C(NC1CCCCCCC1)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(NC1CCCCCCC1)NC1CCCCC1
O=C(NC1CCCCCCC1)NC1CCCCC1
1-cyclohexyl-3-cyclooctylurea