Task: Answer the MCQ question.
Query: Which drug exhibits a 8.223\% 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] O=C1CN2NC(=S)N(c3ccc(Cl)cc3)C2=CN1c1ccc(Cl)cc1
[b] CCN(CC)c1ccc(S(=O)(=O)N2CCCCC2)cc1NC(=O)C1=COCCO1
Answer: a. O=C1CN2NC(=S)N(c3ccc(Cl)cc3)C2=CN1c1ccc(Cl)cc1
{#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#}
O=C1CN2NC(=S)N(c3ccc(Cl)cc3)C2=CN1c1ccc(Cl)cc1
O=C1CN2NC(=S)N(c3ccc(Cl)cc3)C2=CN1c1ccc(Cl)cc1
1,7-bis(4-chlorophenyl)-2-sulfanylidene-3,5-dihydro-[1,2,4]triazolo[1,5-a]pyrazin-6-one