Task: Answer the multiple choice question.
Query: Which drug exhibits a 4.909\% 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 additional words.
Options:
a.) CC1CCc2nc3ccc(S(=O)(=O)N4CCC(C(=O)N5CCCCC5)CC4)cc3c(C(=O)O)c2C1
b.) CC(=O)c1c(C)nc2ccccn12
c.) C=CCc1ccc(OCC(O)COCC)c(OC)c1
d.) CCN1CCCC1CN(Cc1cc2ccc(C)c(C)c2[nH]c1=O)C(=O)Nc1ccccc1OC
Answer: b. CC(=O)c1c(C)nc2ccccn12
{#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#}
CC(=O)c1c(C)nc2ccccn12
CC(=O)c1c(C)nc2ccccn12
1-(2-methylimidazo[1,2-a]pyridin-3-yl)ethanone