Task: Answer the multiple choice question.
Question: Which drug has a 1.873\% 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(NNC(=O)c1cnccc1C(F)(F)F)c1ccccc1
(b) COCCn1c(SCc2csc(-c3ccccc3)n2)nc2ccccc21
Answer: a. O=C(NNC(=O)c1cnccc1C(F)(F)F)c1ccccc1
{#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(NNC(=O)c1cnccc1C(F)(F)F)c1ccccc1
O=C(NNC(=O)c1cnccc1C(F)(F)F)c1ccccc1
N'-benzoyl-4-(trifluoromethyl)pyridine-3-carbohydrazide