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, d, or e without using any additional words.
Options:
a: Cc1ccccc1C(=O)Nc1ccccc1
b: CCCC(=NOCC)C1=C(O)CC(C2CCCSC2)CC1=O
c: CCOC1CC(C)C=CO1
d: O=[N+]([O-])c1cc(C2CCCCC2)c(O)c([N+](=O)[O-])c1
e: CCOP(=O)(N=C1SCC(C)S1)OCC
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}