Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 12.815\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C1CC(=O)N(c2cccc(Cl)c2)C(=O)N1
[b] C=CCN1C(=O)C(O)(CC(=O)c2c(C)n[nH]c2C)c2cc(Br)ccc21
Answer: a. O=C1CC(=O)N(c2cccc(Cl)c2)C(=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#}
O=C1CC(=O)N(c2cccc(Cl)c2)C(=O)N1
O=C1CC(=O)N(c2cccc(Cl)c2)C(=O)N1
1-(3-chlorophenyl)-1,3-diazinane-2,4,6-trione