Task: Answer the multiple-choice question.
Question: Which compound exhibits a 15.108\% 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 other words.
Options:
[a] O=C(O)CC[N+](=O)[O-]
[b] COc1ccc2c(c1)C(=O)[C@H](O)[C@@H](c1ccc(OC)c(Br)c1)O2
[c] Cc1ccc(S(=O)(=O)N(C)CC(=O)Nc2ccccc2N2CCCC2)cc1
[d] CC(=O)Nc1ccc(NC(=O)CSC2=NS(=O)(=O)c3cc(Cl)ccc3N2)cc1
Answer: a. O=C(O)CC[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#}
O=C(O)CC[N+](=O)[O-]
O=C(O)CC[N+](=O)[O-]
3-[oxido(oxo)azaniumyl]propanoicacid