Problem statement: Answer the multiple choice question.
Query: Which drug has a 8.456\% 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) COc1ccc2c(c1)CCNC2Cc1ccc(OC)c(O)c1
(b) CS(=O)(=O)Nc1ccccc1N=C(c1ccccc1)c1ccccc1
Answer: a. COc1ccc2c(c1)CCNC2Cc1ccc(OC)c(O)c1
{#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#}
COc1ccc2c(c1)CCNC2Cc1ccc(OC)c(O)c1
COc1ccc2c(c1)CCNC2Cc1ccc(OC)c(O)c1
2-methoxy-5-[(6-methoxy-1,2,3,4-tetrahydroisoquinolin-1-yl)methyl]phenol