Task: Answer the MCQ question.
Query: Which compound exhibits a 6.628\% 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 other words.
Options:
a CCCCCCN1CC(=O)N2Cc3[nH]c4ccccc4c3C[C@H]2C1=O
b COc1ccc(C)cc1S(=O)(=O)N(C)CC(=O)NCc1ccco1
c Cc1c(N=Nc2c(O)n(C)c(=O)n(C)c2=O)c(=O)n(-c2ccccc2)n1C
d O=C(NC(Cc1ccccc1)C(=O)OCC(=O)N1CCc2ccccc21)c1ccco1
Answer: c. Cc1c(N=Nc2c(O)n(C)c(=O)n(C)c2=O)c(=O)n(-c2ccccc2)n1C
{#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#}
Cc1c(N=Nc2c(O)n(C)c(=O)n(C)c2=O)c(=O)n(-c2ccccc2)n1C
Cc1c(N=Nc2c(O)n(C)c(=O)n(C)c2=O)c(=O)n(-c2ccccc2)n1C
5-[(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)diazenyl]-6-hydroxy-1,3-dimethylpyrimidine-2,4-dione