Task: Answer the MCQ question.
Query: Which drug has a 0.997\% 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) CSc1nnc(-c2sc3cc(Cl)ccc3c2Cl)n1C
(b) CCc1cc2c(NCc3ccco3)ncnc2s1.Cl
Answer: a. CSc1nnc(-c2sc3cc(Cl)ccc3c2Cl)n1C
{#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#}
CSc1nnc(-c2sc3cc(Cl)ccc3c2Cl)n1C
CSc1nnc(-c2sc3cc(Cl)ccc3c2Cl)n1C
3-(3,6-dichloro-1-benzothiophen-2-yl)-4-methyl-5-methylsulfanyl-1,2,4-triazole