Problem statement: Answer the multiple choice question.
Query: Which compound has a 19.215\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: COc1ccc(/C=N/NC(=O)c2ccc(=O)n(C)c2)cc1OC
b: CSCC[C@H](Nc1ncnc2sc(C)c(C)c12)C(=O)O
c: CCOC(=O)c1c(NC(=O)CSC(=S)N(C)C)sc(C)c1C
d: CN(C)CC#CCOCCOCCC#N
Answer: d. CN(C)CC#CCOCCOCCC#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#}
CN(C)CC#CCOCCOCCC#N
CN(C)CC#CCOCCOCCC#N
3-[2-[4-(dimethylamino)but-2-ynoxy]ethoxy]propanenitrile