Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) CP(=O)(Oc1ccc([N+](=O)[O-])cc1)c1ccccc1
b.) Nc1nnc(-c2cccc(Cl)c2Cl)c(N)n1
c.) NCCOCCO
d.) COc1ccc(Cc2nccc3cc(OC)c(OC)cc23)cc1OC
e.) O=C(Cl)CCCC(=O)Cl
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}