Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 5.072\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) NNC(=O)CNc1cccc(Cl)c1
(b) NNC(=O)c1ccc(O)cc1O
(c) O=C(Nc1cccc(O)c1)c1cc(S(=O)(=O)N2CCCC2)ccc1Cl
Answer: b. NNC(=O)c1ccc(O)cc1O
{#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#}
2,4-dihydroxybenzohydrazide