Task: Answer the MCQ question.
Question: Which drug exhibits a 5.569\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a Cn1c(Cn2c(C(F)(F)F)nc3ccccc32)nc2ccccc21
b COn1c(-c2ccccc2)nc2c1CCc1nonc1-2
c Cc1ccc(-c2nnn(CC(=O)N(CC(=O)NC3CCCC3)c3cccc(F)c3)n2)o1
Answer: b. COn1c(-c2ccccc2)nc2c1CCc1nonc1-2
{#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#}
COn1c(-c2ccccc2)nc2c1CCc1nonc1-2
COn1c(-c2ccccc2)nc2c1CCc1nonc1-2
6-methoxy-7-phenyl-4,5-dihydroimidazo[4,5-e][2,1,3]benzoxadiazole