Problem statement: Answer the MCQ question.
Question: Which drug exhibits a -20.805% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=S(=O)(NCc1cccnc1)c1ccc(Cl)c(Cl)c1Cl
(b) CCN(CC)CC.CCc1ccc(-n2c(=S)sc3c(=O)n(-c4ccccc4OC)c(=S)[nH]c32)cc1
Answer: a. O=S(=O)(NCc1cccnc1)c1ccc(Cl)c(Cl)c1Cl
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=S(=O)(NCc1cccnc1)c1ccc(Cl)c(Cl)c1Cl
O=S(=O)(NCc1cccnc1)c1ccc(Cl)c(Cl)c1Cl
2,3,4-trichloro-N-(pyridin-3-ylmethyl)benzenesulfonamide