Task: Answer the MCQ question.
Question: Which compound exhibits a 21.394\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) CC1CC(C)CN(C(=O)C2CCCN(S(=O)(=O)c3cnc[nH]3)C2)C1
(b) Cn1c(=O)[nH]c(=O)c2c1nc(SCCN1CCOCC1)n2CCc1ccccc1
(c) Cc1cc2c(nn1)CCc1c-2no[n+]1[O-]
(d) Cc1cccc(C(=O)Nc2ccc3ccccc3c2)c1
Answer: c. Cc1cc2c(nn1)CCc1c-2no[n+]1[O-]
{#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#}
Cc1cc2c(nn1)CCc1c-2no[n+]1[O-]
Cc1cc2c(nn1)CCc1c-2no[n+]1[O-]
8-methyl-3-oxido-4,5-dihydro-[1,2,5]oxadiazolo[3,4-f]cinnolin-3-ium