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 additional words.
Options:
a) CC=C(CC)C(=O)NC(N)=O
b) CC(C)=CC(=O)OC1CCC2(C=O)C3CCC4(C)C(c5ccc(=O)oc5)CCC4(O)C3CCC2(O)C1
c) CC(=O)OCC(COC(C)=O)OC(C)=O
d) CCCCCCCCC1OC1CCCCCCCC(=O)OCC(CC)CCCC
e) COP(=S)(OC)SC(C)CSCC(C)SP(=S)(OC)OC
Answer: e
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}