Task: Answer the multiple-choice question.
Question: Which drug exhibits a 3.958\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COc1ccc(-c2cn(CCC(=O)NCc3ccc(C)cc3)c(CCN)n2)cc1
b: CN1CCN(C(=O)c2cc3ccccc3cc2O)CC1
c: O=C(CN1CCCCC1)Nc1nnc(-c2ccc([N+](=O)[O-])cc2)s1
Answer: b. CN1CCN(C(=O)c2cc3ccccc3cc2O)CC1
{#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#}
CN1CCN(C(=O)c2cc3ccccc3cc2O)CC1
CN1CCN(C(=O)c2cc3ccccc3cc2O)CC1
(3-hydroxynaphthalen-2-yl)-(4-methylpiperazin-1-yl)methanone