Task: Answer the MCQ question.
Question: Which compound has a 2.568\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] O=C(c1ccccc1)N1CCN(CCc2ccccc2)CC1
[b] CCNC(=S)N1CCN(S(=O)(=O)c2cccc(C(F)(F)F)c2)CC1
[c] O=C(COC(=O)CNS(=O)(=O)c1ccc(F)c(F)c1F)NC1CC1
[d] O=C(CCCO)NNc1c2ccccc2nc2ccccc12
Answer: d. O=C(CCCO)NNc1c2ccccc2nc2ccccc12
{#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(CCCO)NNc1c2ccccc2nc2ccccc12
O=C(CCCO)NNc1c2ccccc2nc2ccccc12
N'-(acridin-9-yl)-4-hydroxybutanehydrazide