Task: Please answer the multiple choice question.
Question: Rank these molecules from lowest to highest LD50 in rats (oral exposure).
Constraint: You must select all options from a, b, c, or d without using any other words.
Options:
a) CCOCN(C(=O)CCl)c1c(C)cccc1OC(C)C
b) Nc1ccc([N+](=O)[O-])cc1Cl
c) CC(=O)Oc1ccccc1
d) CCCCOC(=O)Oc1ccc([N+](=O)[O-])cc1[N+](=O)[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}