Task: Answer the MCQ question.
Query: Which drug has a 12.825\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=c1cc2c(nn1Cc1ccc(Cl)cc1Cl)-c1ccccc1CC2
(b) COc1cc(/C=N/O)ccc1OS(=O)(=O)c1ccc(C)cc1
Answer: a. O=c1cc2c(nn1Cc1ccc(Cl)cc1Cl)-c1ccccc1CC2
{#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=c1cc2c(nn1Cc1ccc(Cl)cc1Cl)-c1ccccc1CC2
O=c1cc2c(nn1Cc1ccc(Cl)cc1Cl)-c1ccccc1CC2
2-[(2,4-dichlorophenyl)methyl]-5,6-dihydrobenzo[h]cinnolin-3-one