Task: Answer the MCQ question.
Question: Which drug has a 8.270\% 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 additional words.
Options:
a: O=c1[nH]ncc(NCCCO)c1Cl
b: O=C(COC(=O)c1ccc(Cl)c([N+](=O)[O-])c1)Nc1ccccc1OC(F)F
c: Cc1cccc(C(=O)Oc2cccc3c(O)cccc23)c1
d: COc1cc(OC)cc(C(=O)Nc2nc(CC(=O)NC(C)c3ccccc3)cs2)c1
Answer: a. O=c1[nH]ncc(NCCCO)c1Cl
{#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]ncc(NCCCO)c1Cl
O=c1[nH]ncc(NCCCO)c1Cl
5-chloro-4-(3-hydroxypropylamino)-1H-pyridazin-6-one