Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a -2.753\% 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 additional words.
Options:
(a) CCCCCCN1C=C/C(=C\C=C(C#N)C#N)c2ccccc21
(b) O=C(C/C=N/OCc1ccc(Cl)cc1)c1cnc(-c2ccccc2)s1
(c) Cc1cccc(NC(=O)CSc2nc3ccccc3nc2N2CC(C)OC(C)C2)c1
(d) CC(C)n1cnc2cc(NCc3ccccc3O)ccc21
Answer: a. CCCCCCN1C=C/C(=C\C=C(C#N)C#N)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#}
CCCCCCN1C=C/C(=C\C=C(C#N)C#N)c2ccccc21
CCCCCCN1C=C/C(=C\C=C(C#N)C#N)c2ccccc21
2-[(2E)-2-(1-hexylquinolin-4-ylidene)ethylidene]propanedinitrile