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: Cc1cc(O)cc(C)c1Cl
b: FC(F)(F)c1ccccc1Br
c: Cc1ccc(C(=O)C(C)CN2CCCCC2)cc1
d: CCCCOC(=O)Oc1ccc([N+](=O)[O-])cc1[N+](=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}