Problem statement: Answer the multiple-choice question.
Query: Which compound has a 19.507\% 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: CC(C)(C)OC(=O)N[C@@H](Cc1ccccc1)C(=O)NCC1CCC(C(=O)N[C@@H](CCC(N)=O)C(=O)O)CC1
b: O=Cc1cccn1-c1ccc(O)cc1
Answer: b. O=Cc1cccn1-c1ccc(O)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#}
O=Cc1cccn1-c1ccc(O)cc1
O=Cc1cccn1-c1ccc(O)cc1
1-(4-hydroxyphenyl)pyrrole-2-carbaldehyde