Task: Answer the multiple choice question.
Query: Which drug exhibits a -1.583\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCOC(=O)c1[nH]c(C)c(/C(O)=C2\C(=O)C(=O)N(CCN(C)C)C2c2ccc(C)o2)c1C
(b) CC(=O)n1cc(/C=N/NC(N)=S)c2ccccc21
Answer: b. CC(=O)n1cc(/C=N/NC(N)=S)c2ccccc21
{#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#}
CC(=O)n1cc(/C=N/NC(N)=S)c2ccccc21
CC(=O)n1cc(/C=N/NC(N)=S)c2ccccc21
1-[(E)-(1-acetylindol-3-yl)methylideneamino]thiourea