Task: Answer the multiple-choice question.
Question: Which compound has a 13.923\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1ccc(CNC(=O)C2(CC3CC(c4ccccc4)=NO3)CCN(C(=O)C3(C)CC3)CC2)cc1
(b) CCOc1cc(C(c2c(C)[nH][nH]c2=O)c2c(C)[nH][nH]c2=O)cc(Cl)c1O
Answer: b. CCOc1cc(C(c2c(C)[nH][nH]c2=O)c2c(C)[nH][nH]c2=O)cc(Cl)c1O
{#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#}
CCOc1cc(C(c2c(C)[nH][nH]c2=O)c2c(C)[nH][nH]c2=O)cc(Cl)c1O
CCOc1cc(C(c2c(C)[nH][nH]c2=O)c2c(C)[nH][nH]c2=O)cc(Cl)c1O
4-[(3-chloro-5-ethoxy-4-hydroxyphenyl)-(3-methyl-5-oxo-1,2-dihydropyrazol-4-yl)methyl]-5-methyl-1,2-dihydropyrazol-3-one