Task: Answer the multiple-choice question.
Query: Which compound has a -1.980\% 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 additional words.
Options:
a: CN(C)C1=NC[C@H](Cc2ccccc2)N1CC1CCCCCC1
b: Cc1ccc(CN2CCN(Cc3ccncc3)CC2CCO)o1
c: COC(=O)Cn1c(=NC(=O)c2sc3ccccc3c2Cl)sc2cc(S(N)(=O)=O)ccc21
d: O=C(NCC(=O)N1CCOCC1)OCc1ccccc1
Answer: b. Cc1ccc(CN2CCN(Cc3ccncc3)CC2CCO)o1
{#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#}
Cc1ccc(CN2CCN(Cc3ccncc3)CC2CCO)o1
Cc1ccc(CN2CCN(Cc3ccncc3)CC2CCO)o1
2-[1-[(5-methylfuran-2-yl)methyl]-4-(pyridin-4-ylmethyl)piperazin-2-yl]ethanol