Task: Answer the MCQ question.
Question: Which compound exhibits a 7.933\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCOc1ccccc1C1C(C(N)=O)=C(C)Nc2nc(CCCO)nn21
[b] CSc1nc2c(c(OC(=O)c3ccc(Cl)cc3)n1)CCCC2
[c] O=C(NCCN1C(=O)S/C(=C\c2ccc(Cl)c([N+](=O)[O-])c2)C1=O)C1=COCCO1
[d] COc1ccc(CC2(CO)CCN(S(=O)(=O)c3sccc3C)CC2)cc1
Answer: c. O=C(NCCN1C(=O)S/C(=C\c2ccc(Cl)c([N+](=O)[O-])c2)C1=O)C1=COCCO1
{#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(NCCN1C(=O)S/C(=C\c2ccc(Cl)c([N+](=O)[O-])c2)C1=O)C1=COCCO1
O=C(NCCN1C(=O)S/C(=C\c2ccc(Cl)c([N+](=O)[O-])c2)C1=O)C1=COCCO1
N-[2-[(5Z)-5-[(4-chloro-3-nitrophenyl)methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]ethyl]-2,3-dihydro-1,4-dioxine-5-carboxamide