Task: Answer the multiple-choice question.
Query: Which drug exhibits a -1.243\% 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) C[C@H](NC(=O)NCCc1ccccc1)C(=O)O
(b) O=C(NN1C(=O)/C(=C\c2cccnc2)SC1=S)C(c1ccccc1)c1ccccc1
Answer: a. C[C@H](NC(=O)NCCc1ccccc1)C(=O)O
{#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#}
C[C@H](NC(=O)NCCc1ccccc1)C(=O)O
C[C@H](NC(=O)NCCc1ccccc1)C(=O)O
(2S)-2-(2-phenylethylcarbamoylamino)propanoic acid