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) OCCOCCN1CCN(C(c2ccccc2)c2ccccc2)CC1
b) CCSC(=O)COc1ccc(Cl)cc1C
c) Nc1ccc([N+](=O)[O-])cc1Cl
d) CC(=O)Oc1ccccc1C=CC(=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}