Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest rat LD50 (oral exposure).
Constraint: You must select all options from a, b, c, or d without using any other words.
Options:
a: COC(CC(C)=O)OC
b: O=C(O)c1cccnc1Nc1cccc(C(F)(F)F)c1
c: CCC=CCCO
d: CCCc1c(OCCCCc2nnn[nH]2)ccc(C(C)=O)c1O
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}