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 other words.
Options:
a.) CN1C(=O)CN=C(c2ccccc2F)c2c1ccc(NC(=O)N1CCOCC1)c2Cl
b.) CC(=O)OC(C)OC(=O)C(C)c1ccc(-c2ccccc2)c(F)c1
c.) CC(O)CC=O
d.) O=[N+]([O-])N1CN([N+](=O)[O-])CN([N+](=O)[O-])C1
e.) CCCCOP(=O)(CC)SCCCC
Answer: d
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}