Task: Answer the multiple-choice question.
Question: Which compound exhibits a 12.775\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] Cc1ccc(S(=O)(=O)N2CCCCC2CCNC(=O)C(=O)NCc2ccccc2C)cc1
[b] COc1cccc2cc(-c3nc4ccccc4o3)c(=O)oc12
Answer: b. COc1cccc2cc(-c3nc4ccccc4o3)c(=O)oc12
{#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#}
COc1cccc2cc(-c3nc4ccccc4o3)c(=O)oc12
COc1cccc2cc(-c3nc4ccccc4o3)c(=O)oc12
3-(1,3-benzoxazol-2-yl)-8-methoxychromen-2-one