Task: Answer the MCQ question.
Question: Which compound exhibits a -0.996\% 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.) COc1ccccc1N1CCN(Cc2ccc(-c3ccccc3[N+](=O)[O-])o2)CC1
b.) CCN(CC)c1ccc(C=Nc2cc(C)cc(C)c2)c(O)c1
c.) COc1ccccc1-c1nnc(NC(=O)OCC(C)C)s1
d.) Cc1ccc(NC(=O)C2(S(=O)(=O)c3ccc(Cl)cc3)CC2)cc1
Answer: a. COc1ccccc1N1CCN(Cc2ccc(-c3ccccc3[N+](=O)[O-])o2)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#}
COc1ccccc1N1CCN(Cc2ccc(-c3ccccc3[N+](=O)[O-])o2)CC1
COc1ccccc1N1CCN(Cc2ccc(-c3ccccc3[N+](=O)[O-])o2)CC1
1-(2-methoxyphenyl)-4-[[5-(2-nitrophenyl)furan-2-yl]methyl]piperazine