Task: Answer the MCQ question.
Query: Which drug has a -28.677\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] COCCCN(C(=O)c1ccc(N2CCCC2=O)cc1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
[b] CCCCc1nc2ccccc2c(N)c1CCC.O=C(O)c1cc([N+](=O)[O-])ccc1Cl
[c] O=C(Nc1nnc(COc2ccccc2)s1)C1CCN(S(=O)(=O)c2ccc(Cl)cc2)CC1
[d] CCN(Cc1ccccc1)S(=O)(=O)CCNC(=O)c1ccccc1
[e] CN(CC(=O)Nc1ccc(N2CCOCC2)cc1)C(=O)CCNC(=O)c1ccc(Br)cc1
Answer: b. CCCCc1nc2ccccc2c(N)c1CCC.O=C(O)c1cc([N+](=O)[O-])ccc1Cl
{#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#}
CCCCc1nc2ccccc2c(N)c1CCC.O=C(O)c1cc([N+](=O)[O-])ccc1Cl
CCCCc1nc2ccccc2c(N)c1CCC.O=C(O)c1cc([N+](=O)[O-])ccc1Cl
2-butyl-3-propylquinolin-4-amine;2-chloro-5-nitrobenzoic acid