Task: Answer the multiple choice question.
Question: Which drug exhibits a 9.928\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) COc1ccccc1-n1c(C)nnc1SCC(=O)Nc1cc(C)cc(C)c1
b.) O=C(Nc1cc2cc([N+](=O)[O-])ccc2oc1=O)c1cccs1
Answer: b. O=C(Nc1cc2cc([N+](=O)[O-])ccc2oc1=O)c1cccs1
{#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(Nc1cc2cc([N+](=O)[O-])ccc2oc1=O)c1cccs1
O=C(Nc1cc2cc([N+](=O)[O-])ccc2oc1=O)c1cccs1
oxido-oxo-[2-oxo-3-(thiophene-2-carbonylamino)chromen-6-yl]azanium