Task: Answer the multiple-choice question.
Query: Which compound has a 4.856\% 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=c1[nH]c2ccc(S(=O)(=O)N3CCCC3)cc2[nH]1
b: O=C(Cn1ccc([N+](=O)[O-])n1)NCc1cccs1
Answer: b. O=C(Cn1ccc([N+](=O)[O-])n1)NCc1cccs1
{#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(Cn1ccc([N+](=O)[O-])n1)NCc1cccs1
O=C(Cn1ccc([N+](=O)[O-])n1)NCc1cccs1
2-(3-nitropyrazol-1-yl)-N-(thiophen-2-ylmethyl)acetamide