Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 8.468\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CCN(CC)C(=O)C[n+]1cccc(C(N)=O)c1
b: CCC(Oc1ccc(Cl)cc1)C(=O)N1CC(=O)Nc2ccccc21
c: O=C(Nc1cc(=O)[nH]c2ncnn12)c1ccc(Cl)cc1Cl
d: CCCS(=O)(=O)N1CCN(CCN2C(=O)c3cccc4cccc(c34)C2=O)CC1
Answer: a. CCN(CC)C(=O)C[n+]1cccc(C(N)=O)c1
{#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#}
CCN(CC)C(=O)C[n+]1cccc(C(N)=O)c1
CCN(CC)C(=O)C[n+]1cccc(C(N)=O)c1
1-[2-(diethylamino)-2-oxoethyl]pyridin-1-ium-3-carboxamide