Task: Answer the multiple-choice question.
Query: Which compound exhibits a 18.396\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. CCN(CC)CCN1C(=O)C(=O)/C(=C(/O)c2c(C)[nH]c(C(=O)OC)c2C)C1c1cccc(OC)c1
b. CC(NC(=O)N1CCN(c2ccccc2F)CC1)c1ccc(F)c(F)c1
c. CN(CCC(=O)Nc1ccc(Cl)cc1)Cc1ccccc1.Cl
d. CCN1CNC(=S)N(CCc2ccccc2)C1
e. Cc1ccc2cccc(Oc3ncnc4scc(-c5ccc(Cl)cc5)c34)c2n1
Answer: b. CC(NC(=O)N1CCN(c2ccccc2F)CC1)c1ccc(F)c(F)c1
{#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#}
CC(NC(=O)N1CCN(c2ccccc2F)CC1)c1ccc(F)c(F)c1
CC(NC(=O)N1CCN(c2ccccc2F)CC1)c1ccc(F)c(F)c1
N-[1-(3,4-difluorophenyl)ethyl]-4-(2-fluorophenyl)piperazine-1-carboxamide