Problem statement: Answer the MCQ question.
Query: Which drug has a 20.214\% 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] COc1cccc2oc3cc(-c4ccc5[nH]ccc5c4)ccc3c(=O)c12
[b] O=C(Nc1ccccc1)Nc1nnc(CSCc2ccccc2Cl)s1
[c] O=[N+]([O-])c1ccccc1NC1CCN(Cc2ccccc2)CC1
[d] N#Cc1cnn(-c2cccc(Cl)c2)c1-n1cccc1
Answer: a. COc1cccc2oc3cc(-c4ccc5[nH]ccc5c4)ccc3c(=O)c12
{#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#}
COc1cccc2oc3cc(-c4ccc5[nH]ccc5c4)ccc3c(=O)c12
COc1cccc2oc3cc(-c4ccc5[nH]ccc5c4)ccc3c(=O)c12
6-(1H-indol-5-yl)-1-methoxyxanthen-9-one