Task: Answer the MCQ question.
Query: Which drug exhibits a 6.493\% human ether-à-go-go related gene (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=c1[nH]c(/C=C/c2cccc([N+](=O)[O-])c2)c([N+](=O)[O-])c(=O)[nH]1
b: CNC(=S)N/N=C1\C(=O)c2cccc3cccc1c23
Answer: b. CNC(=S)N/N=C1\C(=O)c2cccc3cccc1c23
{#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#}
CNC(=S)N/N=C1\C(=O)c2cccc3cccc1c23
CNC(=S)N/N=C1\C(=O)c2cccc3cccc1c23
1-methyl-3-[(Z)-(2-oxoacenaphthylen-1-ylidene)amino]thiourea