Problem statement: Answer the MCQ question.
Query: Which drug has a 1.912\% 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] CNC(=S)N/N=C/c1cc(Br)cc(Br)c1O
[b] O=C(COc1ccc2ccccc2c1)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2)CC1
Answer: a. CNC(=S)N/N=C/c1cc(Br)cc(Br)c1O
{#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#}
1-[(E)-(3,5-dibromo-2-hydroxyphenyl)methylideneamino]-3-methylthiourea