Task: Answer the multiple choice question.
Query: Which compound exhibits a 6.306\% 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=S(=O)(/C=C/c1ccccc1)NCc1ccccc1Cl
b: Cc1n[nH]c(C)c1CCN(C)Cc1cn(C)nc1-c1ccc2c(c1)OCCO2
Answer: a. O=S(=O)(/C=C/c1ccccc1)NCc1ccccc1Cl
{#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=S(=O)(/C=C/c1ccccc1)NCc1ccccc1Cl
O=S(=O)(/C=C/c1ccccc1)NCc1ccccc1Cl
(E)-N-[(2-chlorophenyl)methyl]-2-phenylethenesulfonamide