Task: Answer the MCQ question.
Query: Which compound exhibits a 15.888\% 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) O=C(COc1ccc(F)cc1)N1CCCc2ccccc21
(b) CCCn1nc(C(=O)NNC(=O)CSC(C)C(=O)Nc2cc(C)on2)c2ccccc2c1=O
Answer: a. O=C(COc1ccc(F)cc1)N1CCCc2ccccc21
{#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#}
O=C(COc1ccc(F)cc1)N1CCCc2ccccc21
O=C(COc1ccc(F)cc1)N1CCCc2ccccc21
1-(3,4-dihydro-2H-quinolin-1-yl)-2-(4-fluorophenoxy)ethanone