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, or d without using any additional words.
Options:
a FC(F)(F)c1nc2c(Cl)c(Cl)c(Cl)c(Cl)c2[nH]1
b CCC(=CC(=NO)C(N)=O)C(C)[N+](=O)[O-]
c CCCCCN(CCCCC)CC(=O)NN=Cc1ccc([N+](=O)[O-])o1
d CC(=O)CCCCCCCC(=O)O
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}