Problem statement: Answer the multiple-choice question.
Query: Which drug has a -5.429\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCOc1ccccc1OCCC(=O)N1CCN(S(=O)(=O)c2ccccc2[N+](=O)[O-])CC1
b. CCOC(=O)Cc1nc2ccccc2[nH]1
Answer: b. CCOC(=O)Cc1nc2ccccc2[nH]1
{#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#}
CCOC(=O)Cc1nc2ccccc2[nH]1
CCOC(=O)Cc1nc2ccccc2[nH]1
ethyl 2-(1H-benzimidazol-2-yl)acetate