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: CC(C)CC=O
b: CCC1OC(C)SC1=NOC(=O)NC
c: CC1C2CCC(C2)C1CN(CCO)C(=O)c1ccc(Cl)cc1
d: CC(=O)OCOC(=O)C1=C(COC(N)=O)SC2C(C(C)O)C(=O)N12
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}