Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.761\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) CN(C)S(=O)(=O)c1ccc(C(=O)Nc2ccc3ncccc3c2)cc1
b) Cn1c2ccccc2c2nn(-c3ccccc3)c(=O)cc21
c) Cc1ccc(C(=O)Nc2cccnc2)cc1S(=O)(=O)N1CCCCCC1
d) O=c1cc(-c2ccccc2)nc(N2CCN(Cc3ccccc3)CC2)[nH]1
Answer: b. Cn1c2ccccc2c2nn(-c3ccccc3)c(=O)cc21
{#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#}
Cn1c2ccccc2c2nn(-c3ccccc3)c(=O)cc21
Cn1c2ccccc2c2nn(-c3ccccc3)c(=O)cc21
5-methyl-2-phenylpyridazino[4,3-b]indol-3-one