Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a: C=CCn1c(=O)n(CC=C)c(=O)n(CC=C)c1=O
b: CC(C)(C)C(=O)COc1ccc(Cl)cc1
c: O=C(OCC1(COC(=O)c2cccnc2)CCCC(COC(=O)c2cccnc2)(COC(=O)c2cccnc2)C1O)c1cccnc1
d: CC(C)CNC(=O)NS(=O)(=O)c1ccc(Cl)cc1
e: Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-]
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}