Task: Answer the multiple choice question.
Query: Which compound exhibits a 1.781\% 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 CN(c1ccccc1C(=O)Nc1cccnc1)S(C)(=O)=O
b CCC(C)[C@H]1CN=C(N)N1CCc1cccc2ccccc12
c O=[N+]([O-])c1cc([N+](=O)[O-])c(-c2ccn[nH]2)s1
d O=C(COC(=O)c1cccc(S(=O)(=O)N2CCOCC2)c1)NCCc1ccccc1
Answer: c. O=[N+]([O-])c1cc([N+](=O)[O-])c(-c2ccn[nH]2)s1
{#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#}
O=[N+]([O-])c1cc([N+](=O)[O-])c(-c2ccn[nH]2)s1
O=[N+]([O-])c1cc([N+](=O)[O-])c(-c2ccn[nH]2)s1
5-(3,5-dinitrothiophen-2-yl)-1H-pyrazole