Task: Answer the MCQ question.
Question: Which drug has a 17.575\% 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] CS(=O)(=O)n1nc(OC(=O)c2cccs2)cc1N
[b] CC(=O)Nc1cccc(NC(=O)CSc2nc(C3CC3)nc3ccccc23)c1
Answer: a. CS(=O)(=O)n1nc(OC(=O)c2cccs2)cc1N
{#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#}
CS(=O)(=O)n1nc(OC(=O)c2cccs2)cc1N
CS(=O)(=O)n1nc(OC(=O)c2cccs2)cc1N
(5-amino-1-methylsulfonylpyrazol-3-yl)thiophene-2-carboxylate