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] O=C(O)CCCCC1CCSS1
[b] CO[Si](CCCNCCN)(OC)OC
[c] Nc1ccc(S(=O)(=O)Nc2cnc3ccccc3n2)cc1
[d] CCCCCCS
[e] CCNC(=O)CC(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}