Task: Answer the multiple choice question.
Query: Which drug has a -0.453\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: Cn1c(N)c(C(=O)CSc2nnc(C3CC3)n2-c2ccccc2)c(=O)n(C)c1=O
b: O=C(CCn1nnnc1CN1CCOCC1)N1CCC(c2cccc(Cl)c2)C1
c: CN1CCN(c2ccccc2NC(=O)Cn2ncc3c([nH]c4ccccc43)c2=O)CC1
d: O=C(COC(=O)/C=C/c1ccc(F)cc1)Nc1cccc(S(=O)(=O)N2CCCC2)c1
Answer: c. CN1CCN(c2ccccc2NC(=O)Cn2ncc3c([nH]c4ccccc43)c2=O)CC1
{#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#}
CN1CCN(c2ccccc2NC(=O)Cn2ncc3c([nH]c4ccccc43)c2=O)CC1
CN1CCN(c2ccccc2NC(=O)Cn2ncc3c([nH]c4ccccc43)c2=O)CC1
N-[2-(4-methylpiperazin-1-yl)phenyl]-2-(4-oxo-5H-pyridazino[4,5-b]indol-3-yl)acetamide