Task: Answer the multiple choice question.
Question: Which compound exhibits a 21.118\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: COC(=O)c1ccc(CNC(=O)c2sccc2-c2ccccc2)cc1
b: O=C(N/N=C/c1ccccc1C(F)(F)F)c1ccc2nc[nH]c2c1
c: CCN(CC(=O)NCCc1ccc(S(N)(=O)=O)cc1)Cc1nc2ccccc2c(=O)[nH]1
d: CC(C(=O)NCCC1=CCCCC1)N1C(=O)c2ccccc2C1=O
e: Cc1ccc(-n2nc(-c3ccccc3)cc2Nc2ccccc2N)cc1
Answer: b. O=C(N/N=C/c1ccccc1C(F)(F)F)c1ccc2nc[nH]c2c1
{#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(N/N=C/c1ccccc1C(F)(F)F)c1ccc2nc[nH]c2c1
O=C(N/N=C/c1ccccc1C(F)(F)F)c1ccc2nc[nH]c2c1
N-[(E)-[2-(trifluoromethyl)phenyl]methylideneamino]-3H-benzimidazole-5-carboxamide