Task: Answer the MCQ question.
Question: Which drug has a 3.896\% 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 additional words.
Options:
a Cc1cccc(-n2ncc3c(NCc4cccnc4)ncnc32)c1
b O=C(NCCF)C1Nc2ccc(OC(F)(F)F)cc2C2C=CCC12
c O=C1C=CC(=O)N1c1ccc(OC(F)F)cc1
d COC(=O)c1ccc(Cn2nc([N+](=O)[O-])c(Br)c2C)cc1
Answer: d. COC(=O)c1ccc(Cn2nc([N+](=O)[O-])c(Br)c2C)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#}
COC(=O)c1ccc(Cn2nc([N+](=O)[O-])c(Br)c2C)cc1
COC(=O)c1ccc(Cn2nc([N+](=O)[O-])c(Br)c2C)cc1
methyl 4-[(4-bromo-5-methyl-3-nitropyrazol-1-yl)methyl]benzoate