Task: Answer the MCQ question.
Question: Which compound exhibits a 0.238\% 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 CCOc1ccc(-n2c(-c3ccccc3)c[n+]3c2CCCCC3)cc1.[Br-]
b O=c1c(Cl)c(NCCCO)cnn1-c1nc2ccccc2[nH]1
Answer: b. O=c1c(Cl)c(NCCCO)cnn1-c1nc2ccccc2[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#}
O=c1c(Cl)c(NCCCO)cnn1-c1nc2ccccc2[nH]1
O=c1c(Cl)c(NCCCO)cnn1-c1nc2ccccc2[nH]1
4-chloro-2-(1H-benzimidazol-2-yl)-5-(3-hydroxypropylamino)pyridazin-3-one