Task: Answer the multiple choice question.
Question: Which drug has a -0.048\% 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) O=C(c1nn(-c2ccccc2)c(=O)c2ccccc12)N1CCN(c2ccccn2)CC1
(b) CC(=O)Nc1ccc2c(c1)C(=O)N(c1cccc3ccccc13)C2=O
Answer: a. O=C(c1nn(-c2ccccc2)c(=O)c2ccccc12)N1CCN(c2ccccn2)CC1
{#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=C(c1nn(-c2ccccc2)c(=O)c2ccccc12)N1CCN(c2ccccn2)CC1
O=C(c1nn(-c2ccccc2)c(=O)c2ccccc12)N1CCN(c2ccccn2)CC1
2-phenyl-4-(4-pyridin-2-ylpiperazine-1-carbonyl)phthalazin-1-one