Task: Answer the multiple-choice question.
Query: Which compound has a -9.578\% 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) O=C(O)CCC(=O)c1c[nH]c2ccccc12
(b) Cc1ccc(C(=O)N(C)CCOc2ccccc2)cc1S(=O)(=O)N1CCCCC1
Answer: a. O=C(O)CCC(=O)c1c[nH]c2ccccc12
{#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#}
O=C(O)CCC(=O)c1c[nH]c2ccccc12
O=C(O)CCC(=O)c1c[nH]c2ccccc12
1-(1H-indol-3-yl)-4-hydroxybutane-1,4-dione