Task: Answer the multiple choice question.
Question: Which compound exhibits a -2.139\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1cc(/C=C/C(=O)O)ccc1O
(b) O=C(Cn1c(C(F)(F)F)nc2ccccc21)c1ccc(Cl)cc1
Answer: a. COc1cc(/C=C/C(=O)O)ccc1O
{#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#}
COc1cc(/C=C/C(=O)O)ccc1O
COc1cc(/C=C/C(=O)O)ccc1O
[C][O][C][=C][C][Branch1][Branch2][/C][=C][/C][=Branch1][C][=O][O][=C][C][=C][Ring1][O][O]
(E)-3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid