Problem statement: Answer the multiple-choice question.
Question: Which drug has a 5.666\% human ether-à-go-go related gene (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: Cn1ccnc1SCCC#N
b: CC1(C)c2[nH]c3ccccc3c2C[C@@H]2C(=O)N(Cc3ccccc3Cl)C(=O)N21
c: COc1ccc(/C=C/c2n[nH]c(=O)c(C#N)c2C)cc1
d: COc1ccc(S(=O)(=O)N2CCN(CC(=O)Nc3cccc(OC)c3)CC2)cc1
Answer: a. Cn1ccnc1SCCC#N
{#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#}
Cn1ccnc1SCCC#N
Cn1ccnc1SCCC#N
3-(1-methylimidazol-2-yl)sulfanylpropanenitrile