Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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. COP(=O)(OC)C(O)C(Cl)(Cl)Cl
b. CN1CCN=C(c2ccccc2)c2cc(Cl)ccc21
c. NCCCN
d. CN(CCO)CCO
e. CCC(C)(C)c1ccc2c(c1)C(=O)c1ccccc1C2=O
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}