Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity (LD50 in rats).
Constraint: You must select all options from a, b, c, d, or e without using any additional words.
Options:
a: O=C(Nc1cc(Cl)ccc1Cl)c1cc(Cl)cc(-c2ccccc2)c1O
b: C=CC(C)=O
c: NS(=O)(=O)c1cc(C(=O)O)c(NCc2ccco2)cc1Cl
d: CSCC(=NO)C(C)(C)C
e: O=C1N=C2c3ccccc3N=CN2C1=Cc1ccc([N+](=O)[O-])cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest {acute_toxicity__names__noun}.
Constraint: You must select all options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}