Task: Answer the MCQ question.
Query: Which drug has a 19.395\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CC(=O)Nc1ccc(Cl)cc1C(=O)O
[b] COc1ccc(C(C)=O)cc1COc1ccccc1[N+](=O)[O-]
[c] CCCCC(=O)Nc1ccc(C(=O)N2CCCC(C(=O)OCC)C2)cc1
[d] CCOC(=O)C1=C(Cc2ccc(Cl)cc2)C(=O)c2ccccc2C1=O
Answer: b. COc1ccc(C(C)=O)cc1COc1ccccc1[N+](=O)[O-]
{#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#}
COc1ccc(C(C)=O)cc1COc1ccccc1[N+](=O)[O-]
COc1ccc(C(C)=O)cc1COc1ccccc1[N+](=O)[O-]
[C][O][C][=C][C][=C][Branch1][=Branch1][C][Branch1][C][C][=O][C][=C][Ring1][=Branch2][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1]
1-[4-methoxy-3-[(2-nitrophenoxy)methyl]phenyl]ethanone