Task: Answer the multiple choice question.
Query: Which compound exhibits a 19.795\% 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, b, c, or d without using any other words.
Options:
a: CCOC(=O)C1=C(COC(=O)C23CC4CC(CC(Cl)(C4)C2)C3)NC(=O)NC1C
b: Cc1n[nH]c(C)c1N=Nc1ccc(Br)cc1
c: CSc1ccccc1OCc1cc(C(=O)N2CCSCC2)no1
d: COc1ccc(CN2CCN(C(=O)CC(C)C)CC2)cc1OC
Answer: b. Cc1n[nH]c(C)c1N=Nc1ccc(Br)cc1
{#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#}
Cc1n[nH]c(C)c1N=Nc1ccc(Br)cc1
Cc1n[nH]c(C)c1N=Nc1ccc(Br)cc1
(4-bromophenyl)-(3,5-dimethyl-1H-pyrazol-4-yl)diazene