Task: Answer the MCQ question.
Query: Which drug exhibits a 4.108\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) O=c1c2sc(-c3ccccc3)cc2nc2n1CCC2
b.) COc1ccc(-n2nnc3c(=O)n(C/C=C/c4ccccc4)cnc32)cc1
Answer: a. O=c1c2sc(-c3ccccc3)cc2nc2n1CCC2
{#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=c1c2sc(-c3ccccc3)cc2nc2n1CCC2
O=c1c2sc(-c3ccccc3)cc2nc2n1CCC2
5-phenyl-4-thia-1,8-diazatricyclo[7.3.0.03,7]dodeca-3(7),5,8-trien-2-one