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, or c without using any additional words.
Options:
a CCCCCOC(=O)C=CC(=O)OCCCCC
b NNC(=O)OC1CC2CCC(C1)N2C(=O)Oc1ccccc1
c FC(F)(F)c1nc2c(Br)c(Cl)c(Br)cc2[nH]1
Answer: a
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}