Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) CCCc1ccc2c(c1)OCO2
b) COC(=O)Cl
c) O=C(OCCCOC(=O)c1ccccc1)c1ccccc1
d) Cc1cc(=O)[nH]o1
e) CCOC(=O)CC[Si](C)(OCC)OCC
Answer: a
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}