Task: Answer the multiple-choice question.
Query: Which drug exhibits a -49.838% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: Cc1nc2nc(CSc3nc4ccccc4s3)cc(=O)n2[nH]1
b: CCCCn1c(O)c(C(C)=NCc2cc(OC)cc(OC)c2)c(=O)[nH]c1=O
c: COc1ccccc1C(=O)C1CCCN(C(=O)C2CCCC2)C1
d: CC(C)C[C@H](CO)Nc1nc(N(C)c2cccc(Cl)c2)c2ncn(C(C)C)c2n1
Answer: b. CCCCn1c(O)c(C(C)=NCc2cc(OC)cc(OC)c2)c(=O)[nH]c1=O
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCn1c(O)c(C(C)=NCc2cc(OC)cc(OC)c2)c(=O)[nH]c1=O
CCCCn1c(O)c(C(C)=NCc2cc(OC)cc(OC)c2)c(=O)[nH]c1=O
1-butyl-5-[N-[(3,5-dimethoxyphenyl)methyl]-C-methylcarbonimidoyl]-6-hydroxypyrimidine-2,4-dione