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. Oc1ccc(-c2ccccc2)cc1CN1CCCCC1
b. C=CCn1c(=O)c2[nH]c(C)nc2n(CCCC)c1=O
c. O=c1[nH]c(=O)n(CC2CC2)c2nc[nH]c12
d. CC1=NN(c2ccccc2)C(=O)C1
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}