Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 0.461\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CCN1CCN(c2ccc(N)c(C)c2)CC1
[b] CN(C)c1ccc(CNc2ccccn2)cc1
[c] CC(=O)c1cccc(NC(=S)NCc2ccco2)c1
Answer: a. CCN1CCN(c2ccc(N)c(C)c2)CC1
{#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#}
CCN1CCN(c2ccc(N)c(C)c2)CC1
CCN1CCN(c2ccc(N)c(C)c2)CC1
4-(4-ethylpiperazin-1-yl)-2-methylaniline