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 additional words.
Options:
a. CC1=NN(c2ccc(C)cc2)C(=O)C1
b. CCNc1nc(NC(C)C)nc(SC)n1
c. C1CC2OC2CC1C1CO1
d. CCOC(=O)c1c(C)cc2c(CO)n[nH]c(=O)c2c1C
Answer: b
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}