Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (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. Cn1c([N+](=O)[O-])cnc1COC(N)=O
b. CC(C)N=C1SC(=NOC(=O)N(C)SC(Cl)(Cl)Cl)C(C)(C)S1
c. Cc1ccc(N=CN(C)C=Nc2ccc(C)cc2C)c(C)c1
d. CC(=Cc1ccccc1)CC(=O)NC1CCCCC1
e. CC(C)OC(C)C
Answer: e
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}