Task: Answer the multiple choice question.
Question: Which drug exhibits a 14.238\% 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) CCOC(=O)C1=C(COC(=O)CNS(=O)(=O)c2ccc(C)cc2)NC(=O)NC1C
b) Cn1cccc2[nH]c(=O)nc1-2
c) CCOc1ccc(-n2c(SCC(=O)NC(C)CC)nc3n[nH]c(C)c3c2=N)cc1
d) Cc1ccc2nc(SCC(=O)N3CCCCC3)nc(=O)n2c1
Answer: b. Cn1cccc2[nH]c(=O)nc1-2
{#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#}
Cn1cccc2[nH]c(=O)nc1-2
Cn1cccc2[nH]c(=O)nc1-2
4-methyl-1H-imidazo[4,5-b]pyridin-2-one