Task: Answer the multiple-choice question.
Query: Which compound exhibits a 3.139\% 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.) CCOc1cc(S(=O)(=O)n2c(C)nc3ccccc32)ccc1F
b.) CCOc1ccc(CSC(CC(=O)O)C(=O)O)cc1
Answer: a. CCOc1cc(S(=O)(=O)n2c(C)nc3ccccc32)ccc1F
{#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#}
1-(5-ethoxy-4-fluorophenyl)sulfonyl-2-methylbenzimidazole