Task: Answer the MCQ question.
Question: Which compound has a 1.711\% 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(c1ccccc1)c1c[nH]c2cc3c(cc2c1=O)OCCO3
(b) CCCC12CN3CC(CCC)(CN(C1)C3c1ccccn1)C2=O
Answer: b. CCCC12CN3CC(CCC)(CN(C1)C3c1ccccn1)C2=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#}
CCCC12CN3CC(CCC)(CN(C1)C3c1ccccn1)C2=O
CCCC12CN3CC(CCC)(CN(C1)C3c1ccccn1)C2=O
5,7-dipropyl-2-pyridin-2-yl-1,3-diazatricyclo[3.3.1.13,7]decan-6-one