Task: Answer the MCQ question.
Query: Which drug exhibits a 4.306% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCN1CCN(c2nc(N(C)c3ccccc3)nc(N)c2[N+](=O)[O-])CC1
b. O=C(Nc1nnc(-c2ccco2)o1)C1CC1
Answer: a. CCN1CCN(c2nc(N(C)c3ccccc3)nc(N)c2[N+](=O)[O-])CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCN1CCN(c2nc(N(C)c3ccccc3)nc(N)c2[N+](=O)[O-])CC1
CCN1CCN(c2nc(N(C)c3ccccc3)nc(N)c2[N+](=O)[O-])CC1
6-(4-ethylpiperazin-1-yl)-2-N-methyl-5-nitro-2-N-phenylpyrimidine-2,4-diamine