Task: Answer the multiple choice question.
Query: Which drug exhibits a 6.893\% human ether-à-go-go related gene (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(c1ccccc1)S(=O)(=O)c1cccc(NC(=O)CSc2nnc(C3CC3)n2C)c1
b. COc1ccccc1NC(=O)c1c(N=Cc2cccc([N+](=O)[O-])c2)cnn1C
c. CC(C)(C)c1cc2nc3c(c(=O)n2[nH]1)CN(Cc1ccccc1)C3=O
d. O=C1c2ccccc2C(=O)c2[nH]cnc21
Answer: d. O=C1c2ccccc2C(=O)c2[nH]cnc21
{#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=C1c2ccccc2C(=O)c2[nH]cnc21
O=C1c2ccccc2C(=O)c2[nH]cnc21
1H-benzo[f]benzimidazole-4,9-dione