Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCCCC(CC)COC(CBr)c1ccc(Cl)c(Cl)c1
b.) COP(=S)(OC)SC(SP(=S)(OC)OC)c1ccccc1
c.) CC(=O)OCC(COc1ccccc1)OC(C)=O
d.) FC(F)(F)c1ccccc1Br
e.) CC1COC(=O)O1
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}