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] BrC=Cc1ccccc1
[b] CSc1ccc(O)cc1C
[c] CCOP(=O)(OCC)Oc1ccc(SC)c(C)c1
[d] CCOP(=O)(OCC)ON=C(C1CC1)C1CC1
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}