Task: Answer the MCQ question.
Query: Which drug has a 6.492\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] O=C1/C(=C/c2cccnc2)SC(=S)N1N1CCOCC1
[b] OCCNC(=S)NC1CCCCC1
[c] C=C(C)C(=O)N1CC2(CC(c3cccc(NC(=O)CCCCC)c3)=NO2)C[C@H]1C(N)=O
Answer: b. OCCNC(=S)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#}
OCCNC(=S)NC1CCCCC1
OCCNC(=S)NC1CCCCC1
1-cyclohexyl-3-(2-hydroxyethyl)thiourea