Task: Answer the MCQ question.
Question: Which drug exhibits a 2.423\% 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, or c without using any other words.
Options:
[a] Cc1ccc(NC2(c3nnnn3-c3c(C)cccc3C)CCCCC2)cc1
[b] Cc1cc(C)c(C)c(OCCN2CC(C)OC(C)C2)c1.O=C(O)C(=O)O
[c] CCOC(=O)Cc1c(C)nc2c(C#N)c[nH]n2c1=O
Answer: c. CCOC(=O)Cc1c(C)nc2c(C#N)c[nH]n2c1=O
{#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#}
CCOC(=O)Cc1c(C)nc2c(C#N)c[nH]n2c1=O
CCOC(=O)Cc1c(C)nc2c(C#N)c[nH]n2c1=O
ethyl 2-(3-cyano-5-methyl-7-oxo-1H-pyrazolo[1,5-a]pyrimidin-6-yl)acetate