Problem statement: Answer the multiple choice question.
Query: Which compound has a 2.384\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: COc1cccc(-c2nnc(-c3ccc(C)o3)o2)c1
b: CCOC(=O)c1c(NC(=O)CSc2nc3ccc(C)cc3[nH]2)sc2c1CC(C)(C)NC2(C)C
c: Cc1cc(C)n(-c2cccc3cccnc23)n1
d: Cn1c(-c2ccccc2)c(CCO)c2ccccc21
Answer: a. COc1cccc(-c2nnc(-c3ccc(C)o3)o2)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#}
COc1cccc(-c2nnc(-c3ccc(C)o3)o2)c1
COc1cccc(-c2nnc(-c3ccc(C)o3)o2)c1
2-(3-methoxyphenyl)-5-(5-methylfuran-2-yl)-1,3,4-oxadiazole