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] CO[Si](CCCNCCCN)(OC)OC
[b] CCCCC(CC)COP(=O)(O)O
[c] C=C(CO)C(=O)OCC
[d] O=C(Cl)C(Cl)Cl
[e] Cc1cc(=O)oc2cc(OP(=O)(OCCCl)OCCCl)ccc12
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}