Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: COP(=O)(OC)SCCSC
b: O=C(O)c1ccccc1Nc1cccc(C(F)(F)F)c1
c: NC(CS)C(=O)O
d: O=P(OC(CCl)CCl)(OC(CCl)CCl)OC(CCl)CCl
e: CCC=CC1C(C(=O)OCc2coc(Cc3ccccc3)c2)C1(C)C
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}