Problem statement: Answer the multiple-choice question.
Query: Which compound has a -1.235\% 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=c1[nH][nH]cc1C=Nc1cc(Cl)ccc1O
b Cc1c(/C=N/NC(=O)c2cc(C(C)(C)C)[nH]n2)c2ccccc2n1C
Answer: a. O=c1[nH][nH]cc1C=Nc1cc(Cl)ccc1O
{#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=c1[nH][nH]cc1C=Nc1cc(Cl)ccc1O
O=c1[nH][nH]cc1C=Nc1cc(Cl)ccc1O
4-[(5-chloro-2-hydroxyphenyl)iminomethyl]-1,2-dihydropyrazol-3-one