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: COP(C)(=S)Oc1ccc(Cl)cc1Cl
b: O=c1[nH]c(=O)[nH]c(=O)[nH]1
c: CC(=O)Oc1c([N+](=O)[O-])cc([N+](=O)[O-])cc1C(C)(C)C
d: ClC1=C(Cl)C2(Cl)C3C(Br)C=CC3C1(Cl)C2(Cl)Cl
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}