Task: Answer the multiple choice question.
Query: Which drug exhibits a 4.907\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COc1ccc(-c2noc(CCCC(=O)Nc3ccc(C(N)=O)cc3)n2)cc1
b: CSc1nncc(-c2ccccc2)n1
c: Cl.c1ccc(C2CNCCc3ccccc32)cc1
Answer: b. CSc1nncc(-c2ccccc2)n1
{#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#}
CSc1nncc(-c2ccccc2)n1
CSc1nncc(-c2ccccc2)n1
3-methylsulfanyl-5-phenyl-1,2,4-triazine