Task: Answer the multiple choice question.
Question: Which drug exhibits a 16.893\% 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: CC(C)(C)N(CC#CCC1(O)c2ccccc2-c2ccccc21)CCO
b: Cc1cccc(NC(=S)NCCc2ccccc2)c1C
c: COc1ccc(NC(=O)c2cccc(Cn3cc(Br)c([N+](=O)[O-])n3)c2)c(C)c1
Answer: a. CC(C)(C)N(CC#CCC1(O)c2ccccc2-c2ccccc21)CCO
{#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#}
CC(C)(C)N(CC#CCC1(O)c2ccccc2-c2ccccc21)CCO
CC(C)(C)N(CC#CCC1(O)c2ccccc2-c2ccccc21)CCO
9-[4-[tert-butyl(2-hydroxyethyl)amino]but-2-ynyl]fluoren-9-ol