Task: Answer the multiple choice question.
Question: Which drug exhibits a 5.623\% human ether-à-go-go related gene (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. O=C(CCCC(=O)c1ccc(F)cc1)c1ccc(F)cc1
b. O=C(CN1C(=O)C2C3C=CC(C4CC34)C2C1=O)Nc1cccc2ncccc12
Answer: a. O=C(CCCC(=O)c1ccc(F)cc1)c1ccc(F)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=C(CCCC(=O)c1ccc(F)cc1)c1ccc(F)cc1
O=C(CCCC(=O)c1ccc(F)cc1)c1ccc(F)cc1
1,5-bis(4-fluorophenyl)pentane-1,5-dione