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, d, or e without using any other words.
Options:
a) C=CCn1c(=O)c2[nH]c(C)nc2n(CC(C)C)c1=O
b) CC1=NN(c2ccccc2)C(=O)C1C=O
c) O=C(Cc1ccccc1)OCCc1ccccc1
d) CC(O)Cn1cnc2c1c(=O)n(C)c(=O)n2C
e) O=C=NCCOC(=O)C1C2C=CC(C2)C1C(=O)OCCN=C=O
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}