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, or d without using any other words.
Options:
(a) COc1ccc([N+](=O)[O-])cc1CNCCCl
(b) Cc1ccccc1C#N
(c) S=C=Nc1ccc(Br)cc1
(d) O=[N+]([O-])c1ccc(Oc2ccc(Cl)cc2Cl)cc1
Answer: d
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}