Task: Answer the multiple-choice question.
Question: Which drug has a 19.336\% 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) CN1CCC2(CC1)CC(NC=O)c1ccccc1O2
(b) COc1ccc(CNC(=O)C(C)N2C(=O)COc3ccc(C)cc32)c(OC)c1
(c) Cc1noc(C)c1C(=O)OCC(=O)Nc1c(F)cccc1F
(d) Cc1ccc(-c2csc(NC(=O)CCCc3cccs3)n2)cc1
Answer: a. CN1CCC2(CC1)CC(NC=O)c1ccccc1O2
{#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#}
CN1CCC2(CC1)CC(NC=O)c1ccccc1O2
CN1CCC2(CC1)CC(NC=O)c1ccccc1O2
N-(1'-methylspiro[3,4-dihydrochromene-2,4'-piperidine]-4-yl)formamide