Task: Answer the multiple-choice question.
Query: Which drug has a 8.556\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CC(C)(C)c1cc(Cl)c(O)c(NC(=S)NC(=O)c2cccnc2)c1
(b) O=c1[nH]c(SCc2ccccc2Cl)nc2[nH]ncc12
Answer: b. O=c1[nH]c(SCc2ccccc2Cl)nc2[nH]ncc12
{#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#}
O=c1[nH]c(SCc2ccccc2Cl)nc2[nH]ncc12
O=c1[nH]c(SCc2ccccc2Cl)nc2[nH]ncc12
6-[(2-chlorophenyl)methylsulfanyl]-1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one