Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.125\% 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 S=C(NCc1ccccc1)Nc1nccs1
b CC(=O)Nc1ccc(Nc2nc(C)nc3c2nnn3Cc2ccccc2Cl)cc1
c CCOC(=O)C1=Nc2ccccc2/C1=C\c1c(O)n(C)c(=O)n(C)c1=O
d Cc1cccc(/C=N/NC(=O)Cn2nccc2C)n1
Answer: a. S=C(NCc1ccccc1)Nc1nccs1
{#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#}
S=C(NCc1ccccc1)Nc1nccs1
S=C(NCc1ccccc1)Nc1nccs1
1-benzyl-3-(1,3-thiazol-2-yl)thiourea