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 additional words.
Options:
a CC(C)(C)c1ccc(O)cc1
b COP(=S)(OC)Oc1cc(C)c(Cl)cc1C(C)C
c O=S1(=O)CCCO1
d O=c1[nH]nc(-c2ccccc2)c2conc12
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}