Task: Answer the multiple-choice question.
Question: Which compound exhibits a -10.270% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CC1(C)COC(c2ccc(F)c([N+](=O)[O-])c2)=N1
b Cc1nn(C)c(Oc2ccccc2)c1CCNS(=O)(=O)c1ccc(F)cc1
c CN1CCN(c2ccc([N+](=O)[O-])cc2NC(=O)c2ccco2)CC1
d NC(=O)C(=O)N/N=C/c1c(F)c(F)c(F)c(F)c1F
Answer: a. CC1(C)COC(c2ccc(F)c([N+](=O)[O-])c2)=N1
{#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#}
CC1(C)COC(c2ccc(F)c([N+](=O)[O-])c2)=N1
CC1(C)COC(c2ccc(F)c([N+](=O)[O-])c2)=N1
2-(4-fluoro-3-nitrophenyl)-4,4-dimethyl-5H-1,3-oxazole