Task: Answer the MCQ question.
Question: Which drug exhibits a -2.633% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=S(=O)(O)c1nc2ccccc2n1Cc1ccc(Cl)cc1
[b] CCOC(=O)c1c(C)[nH]c(C)c1C(=O)COC(=O)C1CCCN1S(=O)(=O)c1ccccc1F
Answer: b. CCOC(=O)c1c(C)[nH]c(C)c1C(=O)COC(=O)C1CCCN1S(=O)(=O)c1ccccc1F
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCOC(=O)c1c(C)[nH]c(C)c1C(=O)COC(=O)C1CCCN1S(=O)(=O)c1ccccc1F
CCOC(=O)c1c(C)[nH]c(C)c1C(=O)COC(=O)C1CCCN1S(=O)(=O)c1ccccc1F
ethyl 4-[2-[1-(2-fluorophenyl)sulfonylpyrrolidine-2-carbonyl]oxyacetyl]-2,5-dimethyl-1H-pyrrole-3-carboxylate