Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -20.491% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(Cn1c(C(F)(F)F)nc2ccccc21)c1ccc(Cl)cc1
b: Cc1[nH]nc2c1C(c1cccc(OC(=O)N3CCOCC3)c1)C(C#N)=C(N)O2
Answer: a. O=C(Cn1c(C(F)(F)F)nc2ccccc21)c1ccc(Cl)cc1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(Cn1c(C(F)(F)F)nc2ccccc21)c1ccc(Cl)cc1
O=C(Cn1c(C(F)(F)F)nc2ccccc21)c1ccc(Cl)cc1
1-(4-chlorophenyl)-2-[2-(trifluoromethyl)benzimidazol-1-yl]ethanone