Task: Answer the MCQ question.
Query: Which drug exhibits a 20.796\% 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 Cc1onc(-c2ccccc2Cl)c1C(=O)Nc1ccc(Br)cc1
b O=C(CN1C(=O)C(=O)c2ccccc21)c1ccc(Cl)cc1
Answer: a. Cc1onc(-c2ccccc2Cl)c1C(=O)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#}
Cc1onc(-c2ccccc2Cl)c1C(=O)Nc1ccc(Br)cc1
Cc1onc(-c2ccccc2Cl)c1C(=O)Nc1ccc(Br)cc1
N-(4-bromophenyl)-3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxamide