Task: Answer the multiple choice question.
Question: Which drug exhibits a -0.401\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] [2H]C(CCOS(N)(=O)=O)c1ccc(C(C)(C)C)cc1
[b] CC1CC(C)CN(CC(=O)N2CCc3[nH]c4ccccc4c3C2)C1
Answer: a. [2H]C(CCOS(N)(=O)=O)c1ccc(C(C)(C)C)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#}
[3-(4-tert-butylphenyl)-3-deuteriopropyl] sulfamate