Task: Answer the MCQ question.
Question: Which compound has a 14.258\% 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=C(NCCc1ccco1)C(=O)NCC1OCCCN1S(=O)(=O)c1ccc(Cl)cc1
b O=c1ccnc2n1COCS2
Answer: b. O=c1ccnc2n1COCS2
{#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=c1ccnc2n1COCS2
O=c1ccnc2n1COCS2
4H-pyrimido[2,1-d][1,3,5]oxathiazin-6-one