Task: Answer the multiple-choice question.
Query: Which drug exhibits a 21.786% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a) COc1cc(-c2nnc(-c3cccs3)o2)cc(OC)c1OC
b) O=S(=O)(NC1CC1)c1ccc(S(=O)(=O)N2CCCC3(CCCCC3)C2)cc1
c) COc1ccccc1NC(=O)COC(=O)/C=C/c1ccccc1[N+](=O)[O-]
d) O=[N+]([O-])c1ccc(N2CCN(Cc3cccc([N+](=O)[O-])c3)CC2)cc1
e) O=C(Nc1nc2cc3c(cc2s1)OCCO3)C1=COCCO1
Answer: a. COc1cc(-c2nnc(-c3cccs3)o2)cc(OC)c1OC
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1cc(-c2nnc(-c3cccs3)o2)cc(OC)c1OC
COc1cc(-c2nnc(-c3cccs3)o2)cc(OC)c1OC
2-thiophen-2-yl-5-(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazole