Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] Cn1c2c(c(=O)n1-c1ccccc1)CCCC2
[b] CC(=O)CC(C)(C)N(C)N=O
[c] CC(=O)O[Si](C)(OC(C)=O)OC(C)=O
[d] CCS(=O)CCOP(=O)(OC)OC=C(Cl)Cl
[e] O=C1C=CC(=O)N1c1ccccc1
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}