Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 2.055\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CC(=O)N(C)C1(c2nnnn2CCOC(=O)Nc2cccc3ccccc23)CCCC1
b) CC(C)C(C(=O)Nc1ccc(S(=O)(=O)N2CCOCC2)cc1)N1C(=O)c2ccccc2C1=O
Answer: a. CC(=O)N(C)C1(c2nnnn2CCOC(=O)Nc2cccc3ccccc23)CCCC1
{#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#}
2-[5-[1-[acetyl(methyl)amino]cyclopentyl]tetrazol-1-yl]ethyl N-naphthalen-1-ylcarbamate