Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 0.939\% 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 CCCCSc1nnc(-c2cc(Br)ccc2N)c(=O)[nH]1
b Cc1ccc(OC(=O)CCS(=O)(=O)c2ccc(C)cc2)cc1
Answer: a. CCCCSc1nnc(-c2cc(Br)ccc2N)c(=O)[nH]1
{#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#}
CCCCSc1nnc(-c2cc(Br)ccc2N)c(=O)[nH]1
CCCCSc1nnc(-c2cc(Br)ccc2N)c(=O)[nH]1
6-(2-amino-5-bromophenyl)-3-butylsulfanyl-4H-1,2,4-triazin-5-one