Task: Answer the MCQ question.
Query: Which drug has a 18.979\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] Cc1cc(N2CCN(c3ccccc3)CC2)nc(-c2ccccc2O)n1
[b] Cc1ccc(S(=O)(=O)Nc2ccc(Cl)cn2)cc1C
[c] O=C(N/N=C/c1cccc([N+](=O)[O-])c1)c1cc2c(ccc3ccccc32)o1
Answer: c. O=C(N/N=C/c1cccc([N+](=O)[O-])c1)c1cc2c(ccc3ccccc32)o1
{#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(N/N=C/c1cccc([N+](=O)[O-])c1)c1cc2c(ccc3ccccc32)o1
O=C(N/N=C/c1cccc([N+](=O)[O-])c1)c1cc2c(ccc3ccccc32)o1
N-[(E)-(3-nitrophenyl)methylideneamino]benzo[e][1]benzofuran-2-carboxamide