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) NCCC[Si]12OCCN(CCO1)CCO2
b) CN(C)N=Nc1ccc([N+](=O)[O-])cc1
c) NC(Cc1ccc(N(CCCl)CCCl)cc1)C(=O)O
d) NCC(O)c1ccc(O)cc1
e) O=S(=O)(Cl)c1ccccc1Cl
Answer: d
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}