Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest acute oral toxicity rat LD50.
Constraint: You must select all options from a, b, c, or d without using any additional words.
Options:
a. C=CCN
b. O=[N+]([O-])c1cc(Cl)cc2[nH]c(C(F)(F)F)nc12
c. CCCCCN(CCCCC)CC(=O)NN=Cc1ccc([N+](=O)[O-])o1
d. CC(=O)OC1C(O)C2OC3C=C(C)C(=O)C(O)C3(CO)C1(C)C21CO1
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}