Task: Answer the MCQ question.
Question: Which compound exhibits a 6.991\% 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) Cc1c(NS(=O)(=O)c2ccc3c(c2)n(C)c(=O)n3C)c(=O)n(-c2ccccc2)n1C
b) O=c1oc2cc(OCc3ccc(F)cc3F)ccc2cc1-c1ccc2ccccc2n1
Answer: b. O=c1oc2cc(OCc3ccc(F)cc3F)ccc2cc1-c1ccc2ccccc2n1
{#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=c1oc2cc(OCc3ccc(F)cc3F)ccc2cc1-c1ccc2ccccc2n1
O=c1oc2cc(OCc3ccc(F)cc3F)ccc2cc1-c1ccc2ccccc2n1
7-[(2,4-difluorophenyl)methoxy]-3-quinolin-2-ylchromen-2-one