Task: Answer the multiple-choice question.
Query: Which drug exhibits a 2.957\% 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 additional words.
Options:
a. Cn1c(=O)c2c(nc(NCCOc3ccc(F)cc3)n2C)n(C)c1=O
b. O=C(NNC(=O)c1cc(-c2ccc(Cl)cc2Cl)nc2ccccc12)Nc1ccccc1
Answer: b. O=C(NNC(=O)c1cc(-c2ccc(Cl)cc2Cl)nc2ccccc12)Nc1ccccc1
{#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-[[2-(2,4-dichlorophenyl)quinoline-4-carbonyl]amino]-3-phenylurea