Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 5.553\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) Cc1ccc(-c2csc(N/N=C/c3ccco3)n2)c(C)c1
(b) O=c1cc(O)n(-c2ccc(Cl)cc2)c(=S)[nH]1
(c) Cc1ccc(-c2nn(-c3ccccc3)cc2C(=O)Nc2ccc(C)c(S(=O)(=O)N3CCOCC3)c2)cc1
Answer: b. O=c1cc(O)n(-c2ccc(Cl)cc2)c(=S)[nH]1
{#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-(4-chlorophenyl)-6-hydroxy-2-sulfanylidenepyrimidin-4-one