Task: Answer the multiple-choice question.
Question: Which compound exhibits a -1.084\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. CCn1c(-c2cccs2)nc2ccccc21
b. COc1ccc(NC(=O)CCCNC(=O)Cn2cnc3sc(C)c(C)c3c2=O)cc1Cl
c. COc1cc(/C=C/C(=O)O)cc(S(=O)(=O)N2CCCc3ccccc32)c1OC
d. O=c1[nH]cc(COCC(F)(F)C(F)(F)C(F)(F)F)c(=O)[nH]1
e. Cc1nn2cc(-c3cccc(Cl)c3)cnc2c1Br
Answer: a. CCn1c(-c2cccs2)nc2ccccc21
{#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#}
CCn1c(-c2cccs2)nc2ccccc21
CCn1c(-c2cccs2)nc2ccccc21
1-ethyl-2-thiophen-2-ylbenzimidazole