Task: Answer the multiple-choice question.
Question: Which drug exhibits a 2.503\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) COc1ccc(CNC(=O)C(C)Sc2nc3ccccc3c(=O)n2CC2CCCO2)cc1
b.) CCCSc1nc2c(cnn2-c2ccccc2)c(=O)n1N
Answer: b. CCCSc1nc2c(cnn2-c2ccccc2)c(=O)n1N
{#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#}
CCCSc1nc2c(cnn2-c2ccccc2)c(=O)n1N
CCCSc1nc2c(cnn2-c2ccccc2)c(=O)n1N
5-amino-1-phenyl-6-propylsulfanylpyrazolo[3,4-d]pyrimidin-4-one