Task: Answer the MCQ question.
Query: Which drug exhibits a 4.446\% 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] CCCN1CCN(C(=O)c2oc3ccccc3c2NC(=O)C2CC2)CC1
[b] Nc1cc(-c2ccc(Cl)cc2)nn1-c1ccccc1
Answer: b. Nc1cc(-c2ccc(Cl)cc2)nn1-c1ccccc1
{#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#}
Nc1cc(-c2ccc(Cl)cc2)nn1-c1ccccc1
Nc1cc(-c2ccc(Cl)cc2)nn1-c1ccccc1
5-(4-chlorophenyl)-2-phenylpyrazol-3-amine