Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 1.831\% 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) O=C(/C=C/c1ccc(OCCCF)cc1)NCc1cccc(Cl)c1
(b) O=C(NNc1ccc(Cl)nn1)c1ccc(Cl)cc1
Answer: b. O=C(NNc1ccc(Cl)nn1)c1ccc(Cl)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(NNc1ccc(Cl)nn1)c1ccc(Cl)cc1
O=C(NNc1ccc(Cl)nn1)c1ccc(Cl)cc1
4-chloro-N'-(6-chloropyridazin-3-yl)benzohydrazide