Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 20.248% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: N#C/C(C(=O)N1CCOCC1)=C1\Nc2ccccc2S1
b: CC(=O)Nc1ccc(NS(=O)(=O)c2ccc(-c3csc(C)n3)s2)cc1
c: CC(C)(C)c1ccc(OCCON2C(=O)CCC2=O)c(Cl)c1
d: O=C(NCc1ccccc1)c1ccc(N2CCC3(CC2)CC(c2ccc(Cl)cc2)=NO3)c([N+](=O)[O-])c1
e: CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
Answer: e. CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
CCCCn1c(=O)[nH]c(=O)c2c1nc(-c1ccc(-c3ccccc3)cc1)n2C
3-butyl-7-methyl-8-(4-phenylphenyl)purine-2,6-dione