Task: Answer the MCQ question.
Query: Which compound has a 4.353\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] O=C(Cc1ccc(Cl)cc1)NCC(=O)N1CCN(c2ccccc2)CC1
[b] O=C(Nc1ccccc1)Nc1nncs1
[c] CC(C)c1cccc(C2=CC(=O)C[C@H](c3ccc4c(c3)OCO4)C2)c1
Answer: b. O=C(Nc1ccccc1)Nc1nncs1
{#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(Nc1ccccc1)Nc1nncs1
O=C(Nc1ccccc1)Nc1nncs1
1-phenyl-3-(1,3,4-thiadiazol-5-yl)urea