Task: Answer the multiple choice question.
Question: Which drug exhibits a 19.517\% 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.) COC(c1ccccc1)c1nnc(CCC(=O)N2CCCCCCC2)o1
b.) CCOc1cc(/C=C(\CC(=O)O)c2nc3ccccc3s2)ccc1OC
Answer: b. CCOc1cc(/C=C(\CC(=O)O)c2nc3ccccc3s2)ccc1OC
{#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#}
CCOc1cc(/C=C(\CC(=O)O)c2nc3ccccc3s2)ccc1OC
CCOc1cc(/C=C(\CC(=O)O)c2nc3ccccc3s2)ccc1OC
(E)-3-(1,3-benzothiazol-2-yl)-4-(3-ethoxy-4-methoxyphenyl)but-3-enoic acid