Task: Answer the MCQ question.
Query: Which compound exhibits a -1.840% hERG inhibition at 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CN(c1ccccc1)c1ncccn1
b) O=C1NC(c2cccs2)Nc2ccccc21
Answer: b. O=C1NC(c2cccs2)Nc2ccccc21
{#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=C1NC(c2cccs2)Nc2ccccc21
O=C1NC(c2cccs2)Nc2ccccc21
2-(thiophen-2-yl)-2,3-dihydro-1H-quinazolin-4-one