Task: Answer the MCQ question.
Question: Which compound exhibits a 4.952\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: Cc1cc(=O)[nH]c(-n2[nH]c(C)cc2=O)n1
b: CCN(c1ccccc1)S(=O)(=O)c1ccc(OC)c(NC(=O)CNCC(C)O)c1.O=C(O)C(=O)O
Answer: a. Cc1cc(=O)[nH]c(-n2[nH]c(C)cc2=O)n1
{#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#}
Cc1cc(=O)[nH]c(-n2[nH]c(C)cc2=O)n1
Cc1cc(=O)[nH]c(-n2[nH]c(C)cc2=O)n1
4-methyl-2-(5-methyl-3-oxo-1H-pyrazol-2-yl)-1H-pyrimidin-6-one