Problem statement: Answer the MCQ question.
Query: Which compound exhibits a 13.448\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Nc1ccccc1S(N)(=O)=O
(b) COc1ccc(CCNc2cc(C)nc3c(-c4ccc(Cl)cc4)cnn23)cc1OC
Answer: a. Nc1ccccc1S(N)(=O)=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#}
Nc1ccccc1S(N)(=O)=O
Nc1ccccc1S(N)(=O)=O
2-aminobenzenesulfonamide