Task: Answer the multiple choice question.
Query: Which drug exhibits a 21.039% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1cccc(C)c1NC(=O)CNCC(=O)N(C)C
b. N#Cc1nc(-c2ccc(Cl)cc2)oc1NCCc1ccccn1
Answer: a. Cc1cccc(C)c1NC(=O)CNCC(=O)N(C)C
{#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#}
Cc1cccc(C)c1NC(=O)CNCC(=O)N(C)C
Cc1cccc(C)c1NC(=O)CNCC(=O)N(C)C
2-[[2-(dimethylamino)-2-oxoethyl]amino]-N-(2,6-dimethylphenyl)acetamide