Task: Answer the multiple choice question.
Question: Which compound has a 21.957% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Cc1ccn2c(Nc3ccc4c(c3)OCO4)c(-c3ccccn3)nc2c1
(b) O=C(CNS(=O)(=O)c1ccc(Br)s1)N1CCCC1
Answer: b. O=C(CNS(=O)(=O)c1ccc(Br)s1)N1CCCC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(CNS(=O)(=O)c1ccc(Br)s1)N1CCCC1
O=C(CNS(=O)(=O)c1ccc(Br)s1)N1CCCC1
5-bromo-N-(2-oxo-2-pyrrolidin-1-ylethyl)thiophene-2-sulfonamide