Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, c, d, or e without using any other words.
Options:
[a] CCOP(=O)(OCC)SCC(=O)NC(C)(C)C#N
[b] O=[N+]([O-])C(Br)(CO)CO
[c] FC(F)(F)c1nc2c(Br)c(Br)c(Cl)c(Br)c2[nH]1
[d] CN(C)CCNN
[e] CC(=O)C=CC1=C(C)CCCC1(C)C
Answer: b
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}