Task: Answer the multiple-choice question.
Question: Which compound exhibits a 15.514\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a CC1(C)SCC2C(=O)N3C(CSC3(C)C)C(=O)N21
b COc1ccc(CCn2c(C)cc(C(=O)COC(=O)c3ccc(NC(=O)CC#N)cc3)c2C)cc1
c Nc1cc(Cl)ccc1Oc1ccc2ccccc2c1
d CCCC(=O)Nc1ccc2c(c1)nc(CN1CCN(C(=O)OCC)CC1)n2CC
e NC(=O)C1CCN(C(c2ccccc2Cl)c2nnnn2Cc2ccc3c(c2)OCO3)CC1
Answer: d. CCCC(=O)Nc1ccc2c(c1)nc(CN1CCN(C(=O)OCC)CC1)n2CC
{#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#}
CCCC(=O)Nc1ccc2c(c1)nc(CN1CCN(C(=O)OCC)CC1)n2CC
CCCC(=O)Nc1ccc2c(c1)nc(CN1CCN(C(=O)OCC)CC1)n2CC
ethyl 4-[[5-(butanoylamino)-1-ethylbenzimidazol-2-yl]methyl]piperazine-1-carboxylate