Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a 15.379\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] COC(=O)c1cc([N+](=O)[O-])c(-n2ccnc2)c([N+](=O)[O-])c1
[b] COCCCNC(=O)CN1C(=O)CSc2ncccc21
[c] O=C(O)c1cc([N+](=O)[O-])c(NCCC2=CCCCC2)c([N+](=O)[O-])c1
[d] O=C1OCCC1Sc1nc(-c2ccccc2)cs1
Answer: a. COC(=O)c1cc([N+](=O)[O-])c(-n2ccnc2)c([N+](=O)[O-])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#}
COC(=O)c1cc([N+](=O)[O-])c(-n2ccnc2)c([N+](=O)[O-])c1
COC(=O)c1cc([N+](=O)[O-])c(-n2ccnc2)c([N+](=O)[O-])c1
methyl 4-imidazol-1-yl-3,5-dinitrobenzoate