Task: Answer the multiple choice question.
Question: Which drug exhibits a -2.644\% 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) O=C(Nc1sc2c(c1CN1CCOCC1)CCC2)c1ccc(F)cc1
(b) Clc1c(-c2nnc3n2CCCCC3)sc2ccccc12
Answer: b. Clc1c(-c2nnc3n2CCCCC3)sc2ccccc12
{#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#}
Clc1c(-c2nnc3n2CCCCC3)sc2ccccc12
Clc1c(-c2nnc3n2CCCCC3)sc2ccccc12
3-(3-chloro-1-benzothiophen-2-yl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepine