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 other words.
Options:
a.) Nc1ccc(-c2ccc(N)cc2[N+](=O)[O-])cc1
b.) C=CCC#N
c.) C=CCOC(=O)CCCCC
d.) COC(=O)Nc1nc2ccc(C(=O)c3ccc(F)cc3)cc2[nH]1
Answer: c
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}