Task: Answer the MCQ question.
Query: Which compound has a -1.966\% 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=C1c2ccccc2S(=O)(=O)c2cc(C(=O)N3CCC(O)CC3)ccc21
b) NC1=NC[C@H](Cc2ccc(O)cc2)N1CCCCC1CCCCC1
Answer: b. NC1=NC[C@H](Cc2ccc(O)cc2)N1CCCCC1CCCCC1
{#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#}
NC1=NC[C@H](Cc2ccc(O)cc2)N1CCCCC1CCCCC1
NC1=NC[C@H](Cc2ccc(O)cc2)N1CCCCC1CCCCC1
4-[[(4S)-2-amino-3-(4-cyclohexylbutyl)-4,5-dihydroimidazol-4-yl]methyl]phenol