Task: Answer the MCQ question.
Query: Which drug has a 18.796\% 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 COc1ccc(-c2nc3ccccc3nc2-c2ccccc2)cc1
b CCN(CC)S(=O)(=O)c1ccc(C(=O)O)cc1
Answer: b. CCN(CC)S(=O)(=O)c1ccc(C(=O)O)cc1
{#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#}
CCN(CC)S(=O)(=O)c1ccc(C(=O)O)cc1
CCN(CC)S(=O)(=O)c1ccc(C(=O)O)cc1
[C][C][N][Branch1][Ring1][C][C][S][=Branch1][C][=O][=Branch1][C][=O][C][=C][C][=C][Branch1][=Branch1][C][=Branch1][C][=O][O][C][=C][Ring1][=Branch2]
4-(diethylsulfamoyl)benzoic acid