Task: Answer the multiple-choice question.
Question: Which drug exhibits a 19.331\% 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 COC(=O)CCc1c(C)c(C(=O)c2cc(F)c(F)c(F)c2F)c2ccccn12
b Cc1cc2occ(CC(=O)NC3=NCCS3)c2cc1C(C)C
Answer: b. Cc1cc2occ(CC(=O)NC3=NCCS3)c2cc1C(C)C
{#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#}
Cc1cc2occ(CC(=O)NC3=NCCS3)c2cc1C(C)C
Cc1cc2occ(CC(=O)NC3=NCCS3)c2cc1C(C)C
N-(4,5-dihydro-1,3-thiazol-2-yl)-2-(6-methyl-5-propan-2-yl-1-benzofuran-3-yl)acetamide