Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.628\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. CC(=O)CN1C(=O)NC2(CCCc3ccccc32)C1=O
b. CC(C)[C@@H](C(=O)NCC1CCCO1)N1C(=O)N2CCc3c([nH]c4ccccc34)[C@@]2(C)C1=O
c. COc1ccc(NC(=O)N2CCC(C(=O)c3ccc4c(c3)OCCO4)CC2)cc1
d. S=c1[nH]nc(COc2ccccc2)n1/N=C/C=C/c1ccco1
Answer: a. CC(=O)CN1C(=O)NC2(CCCc3ccccc32)C1=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#}
CC(=O)CN1C(=O)NC2(CCCc3ccccc32)C1=O
CC(=O)CN1C(=O)NC2(CCCc3ccccc32)C1=O
3'-(2-oxopropyl)spiro[2,3-dihydro-1H-naphthalene-4,5'-imidazolidine]-2',4'-dione