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, d, or e without using any additional words.
Options:
a: Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-]
b: CCOP(=O)(OCC)OC(=C(Br)Br)c1ccc(Cl)cc1Cl
c: CC=CCOCN(C(=O)CCl)c1c(CC)cccc1CC
d: O=C(Cc1ccccc1)OC1=C(OC(=O)Cc2ccccc2)C(=O)OC1=O
e: CCN(C(=O)N(CC)c1ccccc1)c1ccccc1
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}