Task: Answer the multiple-choice question.
Query: Which compound exhibits a 1.818\% 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. Cc1cc([N+](=O)[O-])ccc1NC(=O)CCC(=O)N1CCCCCC1
b. Cc1c(CC(=O)O)c(=O)oc2c(C)c(OCc3ccccc3)ccc12
c. CC(=O)c1cc(C(=O)NC2CCCc3c2cnn3-c2cc(C)cc(C)c2)[nH]n1
d. CCOCc1nnc(NC(=O)CCS(=O)(=O)Cc2ccccc2)s1
Answer: a. Cc1cc([N+](=O)[O-])ccc1NC(=O)CCC(=O)N1CCCCCC1
{#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#}
Cc1cc([N+](=O)[O-])ccc1NC(=O)CCC(=O)N1CCCCCC1
Cc1cc([N+](=O)[O-])ccc1NC(=O)CCC(=O)N1CCCCCC1
4-(azepan-1-yl)-N-(2-methyl-4-nitrophenyl)-4-oxobutanamide