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 other words.
Options:
a. CC1=C(C(=O)Nc2ccccc2)SCCO1
b. CCOP(=S)(OCC)OC(C)C
c. O=C(CCl)CCl
d. FC(F)(F)c1nc2c(Cl)cc(Br)cc2[nH]1
e. CC(=O)C1OC1(C)C
Answer: e
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}