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] CCOP(=S)(OCC)OP(=S)(OCC)OCC
[b] CCCCCCCO
[c] CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1
[d] FC(F)(F)c1nc2c(Cl)cc(Cl)cc2[nH]1
[e] CNc1cnn(-c2cccc(C(F)(F)F)c2)c(=O)c1Cl
Answer: a
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}