Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 18.127\% 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: COc1ccc(NC(=O)CSc2nc3sc(C)c(C)c3c(=O)n2Cc2ccco2)cc1
b: CN(C)c1ccc(N=Cc2cccn2C)cc1
c: CCc1nc2cc(CC(=O)O)ccc2o1
d: COc1ccc(-c2nn(-c3ccccc3)cc2C(=O)Nc2nccs2)cc1
Answer: b. CN(C)c1ccc(N=Cc2cccn2C)cc1
{#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#}
CN(C)c1ccc(N=Cc2cccn2C)cc1
CN(C)c1ccc(N=Cc2cccn2C)cc1
N,N-dimethyl-4-[(1-methylpyrrol-2-yl)methylideneamino]aniline