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) NC1=C(Cl)C(=O)c2ccccc2C1=O
b) CCCCC(CC)COCCC#N
c) Nc1ccc(-c2ccc(N)cc2[N+](=O)[O-])cc1
d) O=C(O)C1C2CCC(O2)C1C(=O)O
Answer: d
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}