Task: Answer the multiple choice question.
Query: Which compound exhibits a 18.366\% 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) NC(N)=NS(=O)(=O)c1ccc(NC(=S)NC(=O)c2ccc3c(c2)OCO3)cc1
b) CC1(C)C(=O)C2(CCCCC2)C(=O)OC1c1cccs1
Answer: b. CC1(C)C(=O)C2(CCCCC2)C(=O)OC1c1cccs1
{#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#}
CC1(C)C(=O)C2(CCCCC2)C(=O)OC1c1cccs1
CC1(C)C(=O)C2(CCCCC2)C(=O)OC1c1cccs1
4,4-dimethyl-3-(thiophen-2-yl)-2-oxaspiro[5.5]undecane-1,5-dione