Problem statement: Answer the multiple choice question.
Question: Which compound has a 19.120\% 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) CCOc1ccc2c(O)csc2c1
(b) O=C(NCc1cccnc1)c1ccc(Cl)cc1[N+](=O)[O-]
Answer: a. CCOc1ccc2c(O)csc2c1
{#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#}
CCOc1ccc2c(O)csc2c1
CCOc1ccc2c(O)csc2c1
6-ethoxy-1-benzothiophen-3-ol