Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -3.973\% 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 other words.
Options:
a) C=CCNc1nc(-c2sc(NC(=O)CC)nc2C)cs1
b) O=S(=O)(c1ccccc1)N1CCN(c2nnnn2-c2ccccc2)CC1
c) C#CCNc1nc(CC)nc2c1nnn2Cc1ccccc1F
d) C#CCNC(=O)C1=C[C@H](c2cn(C(C)=O)c3ccccc23)C[C@H](OCc2ccc(CO)cc2)O1
Answer: d. C#CCNC(=O)C1=C[C@H](c2cn(C(C)=O)c3ccccc23)C[C@H](OCc2ccc(CO)cc2)O1
{#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#}
C#CCNC(=O)C1=C[C@H](c2cn(C(C)=O)c3ccccc23)C[C@H](OCc2ccc(CO)cc2)O1
C#CCNC(=O)C1=C[C@H](c2cn(C(C)=O)c3ccccc23)C[C@H](OCc2ccc(CO)cc2)O1
[C][#C][C][N][C][=Branch1][C][=O][C][=C][C@H1][Branch2][Ring1][Branch1][C][=C][N][Branch1][=Branch1][C][Branch1][C][C][=O][C][=C][C][=C][C][=C][Ring1][N][Ring1][=Branch1][C][C@H1][Branch1][#C][O][C][C][=C][C][=C][Branch1][Ring1][C][O][C][=C][Ring1][Branch2][O][Ring2][Ring1][N]
(2R,4R)-4-(1-acetylindol-3-yl)-2-[[4-(hydroxymethyl)phenyl]methoxy]-N-prop-2-ynyl-3,4-dihydro-2H-pyran-6-carboxamide