Problem statement: Answer the multiple-choice question.
Question: Which compound has a 17.193\% 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. O=C(c1cnn(C(=O)c2cccc(S(=O)(=O)N3CCOCC3)c2)c1)c1ccccc1O
b. COc1cccc(OC)c1OCCCOc1ccc([N+](=O)[O-])cc1Cl
c. Cc1ccccc1OC(C)C(=O)Nc1ccc2c(c1)OCCO2
d. CCN(CC(=O)NCc1ccc(Cl)cc1)C(=O)c1cc2ccccc2o1
Answer: b. COc1cccc(OC)c1OCCCOc1ccc([N+](=O)[O-])cc1Cl
{#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#}
COc1cccc(OC)c1OCCCOc1ccc([N+](=O)[O-])cc1Cl
COc1cccc(OC)c1OCCCOc1ccc([N+](=O)[O-])cc1Cl
2-[3-(2-chloro-4-nitrophenoxy)propoxy]-1,3-dimethoxybenzene