Task: Answer the multiple-choice question.
Question: Which compound exhibits a 2.650\% 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) CCOc1ccccc1N(CC(=O)NC1CCCCC1)C(=O)c1nsc(Cl)c1Cl
(b) Cc1cccn2cc(CSc3ccccc3N)nc12
Answer: b. Cc1cccn2cc(CSc3ccccc3N)nc12
{#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#}
Cc1cccn2cc(CSc3ccccc3N)nc12
Cc1cccn2cc(CSc3ccccc3N)nc12
2-[(8-methylimidazo[1,2-a]pyridin-2-yl)methylsulfanyl]aniline