Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -0.508\% 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.) Cc1ccc(NC(=O)CSCC(=O)Nc2ncc3c(n2)CC(c2ccco2)CC3=O)cc1
b.) O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
Answer: b. O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
{#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#}
O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
O=C(c1ccc(Br)cc1)c1coc2ccc(O)cc12
(4-bromophenyl)-(5-hydroxy-1-benzofuran-3-yl)methanone