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] Cc1ccccc1N=NN(C)C
[b] CCCCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
[c] O=C(CCl)CC(=O)Nc1ccccc1
[d] COP(=S)(OC)Sc1ccc(Cl)cc1
[e] CCOP(=S)(OCC)SCn1nnc2ccccc2c1=O
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}