Task: Answer the MCQ question.
Query: Which drug exhibits a -22.517% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(F)cc1
(b) [NH-]c1ncnc2c1N=C[N+]2=CC=CCO
Answer: a. O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(F)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(F)cc1
O=c1[nH]cccc1-c1nc2ccccc2n1Cc1ccc(F)cc1
3-[1-[(4-fluorophenyl)methyl]benzimidazol-2-yl]-1H-pyridin-2-one