Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) O=S(=O)(O)c1ccccc1
b.) CNC(=O)Oc1cc(C)c(S(C)=O)c(C)c1
c.) N#Cc1cccc([N+](=O)[O-])c1C#N
d.) Nc1n[nH]c2ccc(C(F)(F)F)cc12
e.) C=C(C)c1cccc(C(C)(C)N=C=O)c1
Answer: b
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}