Task: Answer the MCQ question.
Query: Which compound exhibits a 3.794\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a O=C1NC2(CCCCC2)C(=O)N1Cc1ccc([N+](=O)[O-])cc1
b O=C(NC1CCCC1)c1cc2ccccc2o1
Answer: b. O=C(NC1CCCC1)c1cc2ccccc2o1
{#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=C(NC1CCCC1)c1cc2ccccc2o1
O=C(NC1CCCC1)c1cc2ccccc2o1
N-cyclopentyl-1-benzofuran-2-carboxamide