Task: Answer the multiple-choice question.
Question: Which drug has a 11.284\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(c1ccccn1)c1ccc2ccccc2n1
b. COc1ccc(N2CC(C(=O)Nc3ccc(S(=O)(=O)Nc4nccs4)cc3)CC2=O)cc1
Answer: a. O=C(c1ccccn1)c1ccc2ccccc2n1
{#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(c1ccccn1)c1ccc2ccccc2n1
O=C(c1ccccn1)c1ccc2ccccc2n1
pyridin-2-yl(quinolin-2-yl)methanone