Task: Answer the multiple choice question.
Query: Which drug exhibits a 15.275\% 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) Cc1ccn2c(=O)nc(SCc3cccc(C(F)(F)F)c3)nc2c1
(b) CCN(c1ccccc1)S(=O)(=O)c1cc([N+](=O)[O-])ccc1N
Answer: b. CCN(c1ccccc1)S(=O)(=O)c1cc([N+](=O)[O-])ccc1N
{#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(c1ccccc1)S(=O)(=O)c1cc([N+](=O)[O-])ccc1N
CCN(c1ccccc1)S(=O)(=O)c1cc([N+](=O)[O-])ccc1N
2-amino-N-ethyl-5-nitro-N-phenylbenzenesulfonamide