Task: Answer the MCQ question.
Question: Which compound exhibits a -9.000% 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=C(Nc1ccccc1-c1ccccc1)c1cccs1
b) O=C(CCCOc1ccc(Br)cc1)NCCc1ccc(OC(F)F)cc1
Answer: a. O=C(Nc1ccccc1-c1ccccc1)c1cccs1
{#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=C(Nc1ccccc1-c1ccccc1)c1cccs1
O=C(Nc1ccccc1-c1ccccc1)c1cccs1
N-(2-phenylphenyl)thiophene-2-carboxamide