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 other words.
Options:
a CNC(=O)Oc1cc(C)c(S(C)=O)c(C)c1
b N#Cc1cc([N+](=O)[O-])ccc1Cl
c O=C(O)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1O
d O=C1OC(=O)c2ccc(Cl)c3cccc1c23
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}