Task: Answer the MCQ question.
Query: Which drug exhibits a 16.498\% 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 COc1ccc2c(c1)OC[C@H]1[C@H]2N2C(=O)CN(CC3CCCO3)C(=O)[C@@]2(C)[C@H]1c1ccccc1
b O=C(CNC(=O)c1ccc(Cl)cc1Cl)OCn1nnc2ccccc2c1=O
c O=[N+]([O-])c1cc(C(F)(F)F)ccc1N1CCN(S(=O)(=O)c2ccc3ccccc3c2)CC1
d O=C(COC(=O)CNC(=O)c1ccccc1)NCCNC(=O)COC(=O)CNC(=O)c1ccccc1
Answer: b. O=C(CNC(=O)c1ccc(Cl)cc1Cl)OCn1nnc2ccccc2c1=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#}
O=C(CNC(=O)c1ccc(Cl)cc1Cl)OCn1nnc2ccccc2c1=O
O=C(CNC(=O)c1ccc(Cl)cc1Cl)OCn1nnc2ccccc2c1=O
2,4-dichloro-N-[2-[(4-oxo-1,2,3-benzotriazin-3-yl)methoxy]-2-oxoethyl]benzamide