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 CC(C)(C)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1Nc1ccc([N+](=O)[O-])cc1[N+](=O)[O-]
b N#CC(N=Nc1ccc(C(F)(F)F)cc1)=NNc1ccc(C(F)(F)F)cc1
c C1CCc2c(OCCN3CCOCC3)n[nH]c2C1
d CC(N)=S
e CCC1OC(=O)C(C)C(OC2CC(C)(OC)C(O)C(C)O2)C(C)C(OC2OC(C)CC(N(C)C)C2O)C(C)(O)CC(C)C(=O)C(C)C(O)C1(C)O
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}