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, d, or e without using any additional words.
Options:
(a) c1cncc(C2=NCCC2)c1
(b) O=[N+]([O-])c1ccc(O)c(N=Nc2c(S(=O)(=O)O)cc3cc(S(=O)(=O)O)cc(Nc4nc(Cl)nc(Cl)n4)c3c2O)c1
(c) CCCC=C(CC)C(=O)O
(d) C=CCC#N
(e) Cc1ccc(=O)n(-c2ccccc2)c1
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}